Home / 1,216,289,011.23-1,678,492,064.48-714,518,943.57

Finding the Fourth Proportional to 1,216,289,011.23, 1,678,492,064.48 and 714,518,943.57

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Solution

The fourth proportional to 1,216,289,011.23, 1,678,492,064.48 and 714,518,943.57 is: 986,043,913.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,289,011.23 : 1,678,492,064.48 = 714,518,943.57 : x
  2. Step 2: Convert to fraction form
    1,216,289,011.23/1,678,492,064.48 = 714,518,943.57/x
  3. Step 3: Cross multiply
    1,216,289,011.23x = 1,678,492,064.48 × 714,518,943.57
  4. Step 4: Simplify right side
    1,216,289,011.23x = 1,199,314,376,699,305,472
  5. Step 5: Solve for x
    x = 1,199,314,376,699,305,472/1,216,289,011.23
  6. Step 6: Final answer
    x = 986,043,913.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.