Home / 8,310,751.40-12,466,127.10-7,974,828.20

Finding the Fourth Proportional to 8,310,751.40, 12,466,127.10 and 7,974,828.20

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Solution

The fourth proportional to 8,310,751.40, 12,466,127.10 and 7,974,828.20 is: 11,962,242.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,310,751.40 : 12,466,127.10 = 7,974,828.20 : x
  2. Step 2: Convert to fraction form
    8,310,751.40/12,466,127.10 = 7,974,828.20/x
  3. Step 3: Cross multiply
    8,310,751.40x = 12,466,127.10 × 7,974,828.20
  4. Step 4: Simplify right side
    8,310,751.40x = 99,415,221,941,864.22
  5. Step 5: Solve for x
    x = 99,415,221,941,864.22/8,310,751.40
  6. Step 6: Final answer
    x = 11,962,242.30

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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.