Home / 134,569,521.72-185,706,021.33-72,689,887.62

Finding the Fourth Proportional to 134,569,521.72, 185,706,021.33 and 72,689,887.62

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Solution

The fourth proportional to 134,569,521.72, 185,706,021.33 and 72,689,887.62 is: 100,312,088.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,569,521.72 : 185,706,021.33 = 72,689,887.62 : x
  2. Step 2: Convert to fraction form
    134,569,521.72/185,706,021.33 = 72,689,887.62/x
  3. Step 3: Cross multiply
    134,569,521.72x = 185,706,021.33 × 72,689,887.62
  4. Step 4: Simplify right side
    134,569,521.72x = 13,498,949,820,835,024
  5. Step 5: Solve for x
    x = 13,498,949,820,835,024/134,569,521.72
  6. Step 6: Final answer
    x = 100,312,088.86

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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.