Home / 1,478,412,078.30-2,217,618,117.45-752,817,966.30

Finding the Fourth Proportional to 1,478,412,078.30, 2,217,618,117.45 and 752,817,966.30

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Solution

The fourth proportional to 1,478,412,078.30, 2,217,618,117.45 and 752,817,966.30 is: 1,129,226,949.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478,412,078.30 : 2,217,618,117.45 = 752,817,966.30 : x
  2. Step 2: Convert to fraction form
    1,478,412,078.30/2,217,618,117.45 = 752,817,966.30/x
  3. Step 3: Cross multiply
    1,478,412,078.30x = 2,217,618,117.45 × 752,817,966.30
  4. Step 4: Simplify right side
    1,478,412,078.30x = 1,669,462,761,208,743,168
  5. Step 5: Solve for x
    x = 1,669,462,761,208,743,168/1,478,412,078.30
  6. Step 6: Final answer
    x = 1,129,226,949.45

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1.5x scale

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.