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Finding the Fourth Proportional to 517,834,804.80, 776,752,207.20 and 324,343,041.60

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Solution

The fourth proportional to 517,834,804.80, 776,752,207.20 and 324,343,041.60 is: 486,514,562.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,834,804.80 : 776,752,207.20 = 324,343,041.60 : x
  2. Step 2: Convert to fraction form
    517,834,804.80/776,752,207.20 = 324,343,041.60/x
  3. Step 3: Cross multiply
    517,834,804.80x = 776,752,207.20 × 324,343,041.60
  4. Step 4: Simplify right side
    517,834,804.80x = 251,934,173,452,761,440
  5. Step 5: Solve for x
    x = 251,934,173,452,761,440/517,834,804.80
  6. Step 6: Final answer
    x = 486,514,562.40

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Similar ratio
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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.