Home / 401,632,017.60-602,532,007.20-129,030,340.80

Finding the Fourth Proportional to 401,632,017.60, 602,532,007.20 and 129,030,340.80

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Solution

The fourth proportional to 401,632,017.60, 602,532,007.20 and 129,030,340.80 is: 193,572,491.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,632,017.60 : 602,532,007.20 = 129,030,340.80 : x
  2. Step 2: Convert to fraction form
    401,632,017.60/602,532,007.20 = 129,030,340.80/x
  3. Step 3: Cross multiply
    401,632,017.60x = 602,532,007.20 × 129,030,340.80
  4. Step 4: Simplify right side
    401,632,017.60x = 77,744,910,231,924,064
  5. Step 5: Solve for x
    x = 77,744,910,231,924,064/401,632,017.60
  6. Step 6: Final answer
    x = 193,572,491.30

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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.