Home / 144,506,071.95-199,419,869.58-78,427,140.87

Finding the Fourth Proportional to 144,506,071.95, 199,419,869.58 and 78,427,140.87

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Solution

The fourth proportional to 144,506,071.95, 199,419,869.58 and 78,427,140.87 is: 108,230,263.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,506,071.95 : 199,419,869.58 = 78,427,140.87 : x
  2. Step 2: Convert to fraction form
    144,506,071.95/199,419,869.58 = 78,427,140.87/x
  3. Step 3: Cross multiply
    144,506,071.95x = 199,419,869.58 × 78,427,140.87
  4. Step 4: Simplify right side
    144,506,071.95x = 15,639,930,203,827,690
  5. Step 5: Solve for x
    x = 15,639,930,203,827,690/144,506,071.95
  6. Step 6: Final answer
    x = 108,230,263.22

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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.