Home / 78,749,246.40-118,123,869.60-78,749,246.40

Finding the Fourth Proportional to 78,749,246.40, 118,123,869.60 and 78,749,246.40

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Solution

The fourth proportional to 78,749,246.40, 118,123,869.60 and 78,749,246.40 is: 118,123,869.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,749,246.40 : 118,123,869.60 = 78,749,246.40 : x
  2. Step 2: Convert to fraction form
    78,749,246.40/118,123,869.60 = 78,749,246.40/x
  3. Step 3: Cross multiply
    78,749,246.40x = 118,123,869.60 × 78,749,246.40
  4. Step 4: Simplify right side
    78,749,246.40x = 9,302,165,712,851,870
  5. Step 5: Solve for x
    x = 9,302,165,712,851,870/78,749,246.40
  6. Step 6: Final answer
    x = 118,123,869.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.