Home / 136,897,124.68-188,927,300.93-77,337,763.72

Finding the Fourth Proportional to 136,897,124.68, 188,927,300.93 and 77,337,763.72

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Solution

The fourth proportional to 136,897,124.68, 188,927,300.93 and 77,337,763.72 is: 106,731,350.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,897,124.68 : 188,927,300.93 = 77,337,763.72 : x
  2. Step 2: Convert to fraction form
    136,897,124.68/188,927,300.93 = 77,337,763.72/x
  3. Step 3: Cross multiply
    136,897,124.68x = 188,927,300.93 × 77,337,763.72
  4. Step 4: Simplify right side
    136,897,124.68x = 14,611,214,960,220,024
  5. Step 5: Solve for x
    x = 14,611,214,960,220,024/136,897,124.68
  6. Step 6: Final answer
    x = 106,731,350.24

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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.