Home / 551,705,428.38-760,734,957.80-450,921,109.72

Finding the Fourth Proportional to 551,705,428.38, 760,734,957.80 and 450,921,109.72

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Solution

The fourth proportional to 551,705,428.38, 760,734,957.80 and 450,921,109.72 is: 621,765,590.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,705,428.38 : 760,734,957.80 = 450,921,109.72 : x
  2. Step 2: Convert to fraction form
    551,705,428.38/760,734,957.80 = 450,921,109.72/x
  3. Step 3: Cross multiply
    551,705,428.38x = 760,734,957.80 × 450,921,109.72
  4. Step 4: Simplify right side
    551,705,428.38x = 343,031,451,373,973,376
  5. Step 5: Solve for x
    x = 343,031,451,373,973,376/551,705,428.38
  6. Step 6: Final answer
    x = 621,765,590.35

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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.