Home / 100,926,007.20-151,389,010.80-66,488,630.40

Finding the Fourth Proportional to 100,926,007.20, 151,389,010.80 and 66,488,630.40

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Solution

The fourth proportional to 100,926,007.20, 151,389,010.80 and 66,488,630.40 is: 99,732,945.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,926,007.20 : 151,389,010.80 = 66,488,630.40 : x
  2. Step 2: Convert to fraction form
    100,926,007.20/151,389,010.80 = 66,488,630.40/x
  3. Step 3: Cross multiply
    100,926,007.20x = 151,389,010.80 × 66,488,630.40
  4. Step 4: Simplify right side
    100,926,007.20x = 10,065,647,985,702,808
  5. Step 5: Solve for x
    x = 10,065,647,985,702,808/100,926,007.20
  6. Step 6: Final answer
    x = 99,732,945.60

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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.