Home / 77,655,800.40-116,558,350.20-39,360,555.60

Finding the Fourth Proportional to 77,655,800.40, 116,558,350.20 and 39,360,555.60

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Solution

The fourth proportional to 77,655,800.40, 116,558,350.20 and 39,360,555.60 is: 59,078,670.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,655,800.40 : 116,558,350.20 = 39,360,555.60 : x
  2. Step 2: Convert to fraction form
    77,655,800.40/116,558,350.20 = 39,360,555.60/x
  3. Step 3: Cross multiply
    77,655,800.40x = 116,558,350.20 × 39,360,555.60
  4. Step 4: Simplify right side
    77,655,800.40x = 4,587,801,423,691,371
  5. Step 5: Solve for x
    x = 4,587,801,423,691,371/77,655,800.40
  6. Step 6: Final answer
    x = 59,078,670.24

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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.