Home / 1,387,930,929.88-1,915,333,346.80-752,849,831.92

Finding the Fourth Proportional to 1,387,930,929.88, 1,915,333,346.80 and 752,849,831.92

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Solution

The fourth proportional to 1,387,930,929.88, 1,915,333,346.80 and 752,849,831.92 is: 1,038,926,618.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,930,929.88 : 1,915,333,346.80 = 752,849,831.92 : x
  2. Step 2: Convert to fraction form
    1,387,930,929.88/1,915,333,346.80 = 752,849,831.92/x
  3. Step 3: Cross multiply
    1,387,930,929.88x = 1,915,333,346.80 × 752,849,831.92
  4. Step 4: Simplify right side
    1,387,930,929.88x = 1,441,958,388,209,150,976
  5. Step 5: Solve for x
    x = 1,441,958,388,209,150,976/1,387,930,929.88
  6. Step 6: Final answer
    x = 1,038,926,618.87

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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.