Home / 130,507,729.66-180,105,288.65-71,774,940.70

Finding the Fourth Proportional to 130,507,729.66, 180,105,288.65 and 71,774,940.70

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Solution

The fourth proportional to 130,507,729.66, 180,105,288.65 and 71,774,940.70 is: 99,051,959.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,507,729.66 : 180,105,288.65 = 71,774,940.70 : x
  2. Step 2: Convert to fraction form
    130,507,729.66/180,105,288.65 = 71,774,940.70/x
  3. Step 3: Cross multiply
    130,507,729.66x = 180,105,288.65 × 71,774,940.70
  4. Step 4: Simplify right side
    130,507,729.66x = 12,927,046,412,610,134
  5. Step 5: Solve for x
    x = 12,927,046,412,610,134/130,507,729.66
  6. Step 6: Final answer
    x = 99,051,959.96

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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.