Home / 1,437,140,011.40-2,155,710,017.10-977,974,987.40

Finding the Fourth Proportional to 1,437,140,011.40, 2,155,710,017.10 and 977,974,987.40

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Solution

The fourth proportional to 1,437,140,011.40, 2,155,710,017.10 and 977,974,987.40 is: 1,466,962,481.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,437,140,011.40 : 2,155,710,017.10 = 977,974,987.40 : x
  2. Step 2: Convert to fraction form
    1,437,140,011.40/2,155,710,017.10 = 977,974,987.40/x
  3. Step 3: Cross multiply
    1,437,140,011.40x = 2,155,710,017.10 × 977,974,987.40
  4. Step 4: Simplify right side
    1,437,140,011.40x = 2,108,230,476,811,426,048
  5. Step 5: Solve for x
    x = 2,108,230,476,811,426,048/1,437,140,011.40
  6. Step 6: Final answer
    x = 1,466,962,481.10

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Double scale
Find fourth proportional to 1,437,140,012.40, 2,155,710,018.60 and 977,974,988.40
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.