Home / 130,443,971.32-180,013,264.94-71,710,414.36

Finding the Fourth Proportional to 130,443,971.32, 180,013,264.94 and 71,710,414.36

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Solution

The fourth proportional to 130,443,971.32, 180,013,264.94 and 71,710,414.36 is: 98,960,693.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,443,971.32 : 180,013,264.94 = 71,710,414.36 : x
  2. Step 2: Convert to fraction form
    130,443,971.32/180,013,264.94 = 71,710,414.36/x
  3. Step 3: Cross multiply
    130,443,971.32x = 180,013,264.94 × 71,710,414.36
  4. Step 4: Simplify right side
    130,443,971.32x = 12,908,825,819,143,860
  5. Step 5: Solve for x
    x = 12,908,825,819,143,860/130,443,971.32
  6. Step 6: Final answer
    x = 98,960,693.15

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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.