Home / 130,206,700.61-179,834,374.96-85,751,397.49

Finding the Fourth Proportional to 130,206,700.61, 179,834,374.96 and 85,751,397.49

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Solution

The fourth proportional to 130,206,700.61, 179,834,374.96 and 85,751,397.49 is: 118,435,141.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,206,700.61 : 179,834,374.96 = 85,751,397.49 : x
  2. Step 2: Convert to fraction form
    130,206,700.61/179,834,374.96 = 85,751,397.49/x
  3. Step 3: Cross multiply
    130,206,700.61x = 179,834,374.96 × 85,751,397.49
  4. Step 4: Simplify right side
    130,206,700.61x = 15,421,048,969,560,662
  5. Step 5: Solve for x
    x = 15,421,048,969,560,662/130,206,700.61
  6. Step 6: Final answer
    x = 118,435,141.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.