Home / 132,021,800.40-198,116,681.40-77,434,280.40

Finding the Fourth Proportional to 132,021,800.40, 198,116,681.40 and 77,434,280.40

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Solution

The fourth proportional to 132,021,800.40, 198,116,681.40 and 77,434,280.40 is: 116,200,677.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,021,800.40 : 198,116,681.40 = 77,434,280.40 : x
  2. Step 2: Convert to fraction form
    132,021,800.40/198,116,681.40 = 77,434,280.40/x
  3. Step 3: Cross multiply
    132,021,800.40x = 198,116,681.40 × 77,434,280.40
  4. Step 4: Simplify right side
    132,021,800.40x = 15,341,022,659,445,066
  5. Step 5: Solve for x
    x = 15,341,022,659,445,066/132,021,800.40
  6. Step 6: Final answer
    x = 116,200,677.56

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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.