Home / 1,387,930,915.68-1,915,333,327.21-752,849,817.74

Finding the Fourth Proportional to 1,387,930,915.68, 1,915,333,327.21 and 752,849,817.74

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Solution

The fourth proportional to 1,387,930,915.68, 1,915,333,327.21 and 752,849,817.74 is: 1,038,926,599.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,930,915.68 : 1,915,333,327.21 = 752,849,817.74 : x
  2. Step 2: Convert to fraction form
    1,387,930,915.68/1,915,333,327.21 = 752,849,817.74/x
  3. Step 3: Cross multiply
    1,387,930,915.68x = 1,915,333,327.21 × 752,849,817.74
  4. Step 4: Simplify right side
    1,387,930,915.68x = 1,441,958,346,309,314,560
  5. Step 5: Solve for x
    x = 1,441,958,346,309,314,560/1,387,930,915.68
  6. Step 6: Final answer
    x = 1,038,926,599.32

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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.