Home / 51,780,140.40-77,608,002.60-21,472,402.80

Finding the Fourth Proportional to 51,780,140.40, 77,608,002.60 and 21,472,402.80

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Solution

The fourth proportional to 51,780,140.40, 77,608,002.60 and 21,472,402.80 is: 32,182,807.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,780,140.40 : 77,608,002.60 = 21,472,402.80 : x
  2. Step 2: Convert to fraction form
    51,780,140.40/77,608,002.60 = 21,472,402.80/x
  3. Step 3: Cross multiply
    51,780,140.40x = 77,608,002.60 × 21,472,402.80
  4. Step 4: Simplify right side
    51,780,140.40x = 1,666,430,292,330,647.25
  5. Step 5: Solve for x
    x = 1,666,430,292,330,647.25/51,780,140.40
  6. Step 6: Final answer
    x = 32,182,807.53

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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.