Home / 718,688,895.20-1,078,033,342.80-627,989,631.20

Finding the Fourth Proportional to 718,688,895.20, 1,078,033,342.80 and 627,989,631.20

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Solution

The fourth proportional to 718,688,895.20, 1,078,033,342.80 and 627,989,631.20 is: 941,984,446.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,688,895.20 : 1,078,033,342.80 = 627,989,631.20 : x
  2. Step 2: Convert to fraction form
    718,688,895.20/1,078,033,342.80 = 627,989,631.20/x
  3. Step 3: Cross multiply
    718,688,895.20x = 1,078,033,342.80 × 627,989,631.20
  4. Step 4: Simplify right side
    718,688,895.20x = 676,993,761,366,275,200
  5. Step 5: Solve for x
    x = 676,993,761,366,275,200/718,688,895.20
  6. Step 6: Final answer
    x = 941,984,446.80

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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.