Home / 551,442,807.20-826,313,905.20-478,316,525.60

Finding the Fourth Proportional to 551,442,807.20, 826,313,905.20 and 478,316,525.60

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Solution

The fourth proportional to 551,442,807.20, 826,313,905.20 and 478,316,525.60 is: 716,737,240.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,442,807.20 : 826,313,905.20 = 478,316,525.60 : x
  2. Step 2: Convert to fraction form
    551,442,807.20/826,313,905.20 = 478,316,525.60/x
  3. Step 3: Cross multiply
    551,442,807.20x = 826,313,905.20 × 478,316,525.60
  4. Step 4: Simplify right side
    551,442,807.20x = 395,239,596,190,231,808
  5. Step 5: Solve for x
    x = 395,239,596,190,231,808/551,442,807.20
  6. Step 6: Final answer
    x = 716,737,240.98

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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.