Home / 472,394,711.20-708,592,066.80-355,997,322.40

Finding the Fourth Proportional to 472,394,711.20, 708,592,066.80 and 355,997,322.40

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Solution

The fourth proportional to 472,394,711.20, 708,592,066.80 and 355,997,322.40 is: 533,995,983.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,394,711.20 : 708,592,066.80 = 355,997,322.40 : x
  2. Step 2: Convert to fraction form
    472,394,711.20/708,592,066.80 = 355,997,322.40/x
  3. Step 3: Cross multiply
    472,394,711.20x = 708,592,066.80 × 355,997,322.40
  4. Step 4: Simplify right side
    472,394,711.20x = 252,256,878,454,681,888
  5. Step 5: Solve for x
    x = 252,256,878,454,681,888/472,394,711.20
  6. Step 6: Final answer
    x = 533,995,983.60

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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.