Home / 136,897,140.70-188,927,323.04-77,337,779.76

Finding the Fourth Proportional to 136,897,140.70, 188,927,323.04 and 77,337,779.76

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Solution

The fourth proportional to 136,897,140.70, 188,927,323.04 and 77,337,779.76 is: 106,731,372.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,897,140.70 : 188,927,323.04 = 77,337,779.76 : x
  2. Step 2: Convert to fraction form
    136,897,140.70/188,927,323.04 = 77,337,779.76/x
  3. Step 3: Cross multiply
    136,897,140.70x = 188,927,323.04 × 77,337,779.76
  4. Step 4: Simplify right side
    136,897,140.70x = 14,611,219,699,913,894
  5. Step 5: Solve for x
    x = 14,611,219,699,913,894/136,897,140.70
  6. Step 6: Final answer
    x = 106,731,372.37

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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.