Home / 136,897,141.20-188,927,323.74-77,337,780.26

Finding the Fourth Proportional to 136,897,141.20, 188,927,323.74 and 77,337,780.26

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Solution

The fourth proportional to 136,897,141.20, 188,927,323.74 and 77,337,780.26 is: 106,731,373.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,897,141.20 : 188,927,323.74 = 77,337,780.26 : x
  2. Step 2: Convert to fraction form
    136,897,141.20/188,927,323.74 = 77,337,780.26/x
  3. Step 3: Cross multiply
    136,897,141.20x = 188,927,323.74 × 77,337,780.26
  4. Step 4: Simplify right side
    136,897,141.20x = 14,611,219,848,514,004
  5. Step 5: Solve for x
    x = 14,611,219,848,514,004/136,897,141.20
  6. Step 6: Final answer
    x = 106,731,373.06

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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.