Home / 128,758,681.40-193,138,022.10-60,734,233.40

Finding the Fourth Proportional to 128,758,681.40, 193,138,022.10 and 60,734,233.40

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Solution

The fourth proportional to 128,758,681.40, 193,138,022.10 and 60,734,233.40 is: 91,101,350.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,758,681.40 : 193,138,022.10 = 60,734,233.40 : x
  2. Step 2: Convert to fraction form
    128,758,681.40/193,138,022.10 = 60,734,233.40/x
  3. Step 3: Cross multiply
    128,758,681.40x = 193,138,022.10 × 60,734,233.40
  4. Step 4: Simplify right side
    128,758,681.40x = 11,730,089,712,635,758
  5. Step 5: Solve for x
    x = 11,730,089,712,635,758/128,758,681.40
  6. Step 6: Final answer
    x = 91,101,350.10

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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.