Home / 478,291,490.40-717,437,235.60-437,476,821.60

Finding the Fourth Proportional to 478,291,490.40, 717,437,235.60 and 437,476,821.60

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Solution

The fourth proportional to 478,291,490.40, 717,437,235.60 and 437,476,821.60 is: 656,215,232.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,291,490.40 : 717,437,235.60 = 437,476,821.60 : x
  2. Step 2: Convert to fraction form
    478,291,490.40/717,437,235.60 = 437,476,821.60/x
  3. Step 3: Cross multiply
    478,291,490.40x = 717,437,235.60 × 437,476,821.60
  4. Step 4: Simplify right side
    478,291,490.40x = 313,862,161,527,778,368
  5. Step 5: Solve for x
    x = 313,862,161,527,778,368/478,291,490.40
  6. Step 6: Final answer
    x = 656,215,232.40

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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.