Home / 130,437,700.17-179,928,850.56-81,460,097.61

Finding the Fourth Proportional to 130,437,700.17, 179,928,850.56 and 81,460,097.61

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Solution

The fourth proportional to 130,437,700.17, 179,928,850.56 and 81,460,097.61 is: 112,367,986.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,437,700.17 : 179,928,850.56 = 81,460,097.61 : x
  2. Step 2: Convert to fraction form
    130,437,700.17/179,928,850.56 = 81,460,097.61/x
  3. Step 3: Cross multiply
    130,437,700.17x = 179,928,850.56 × 81,460,097.61
  4. Step 4: Simplify right side
    130,437,700.17x = 14,657,021,729,472,704
  5. Step 5: Solve for x
    x = 14,657,021,729,472,704/130,437,700.17
  6. Step 6: Final answer
    x = 112,367,986.48

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1.5x scale

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.