Home / 78,849,117.60-118,273,676.40-55,890,866.40

Finding the Fourth Proportional to 78,849,117.60, 118,273,676.40 and 55,890,866.40

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Solution

The fourth proportional to 78,849,117.60, 118,273,676.40 and 55,890,866.40 is: 83,836,299.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,849,117.60 : 118,273,676.40 = 55,890,866.40 : x
  2. Step 2: Convert to fraction form
    78,849,117.60/118,273,676.40 = 55,890,866.40/x
  3. Step 3: Cross multiply
    78,849,117.60x = 118,273,676.40 × 55,890,866.40
  4. Step 4: Simplify right side
    78,849,117.60x = 6,610,418,246,309,233
  5. Step 5: Solve for x
    x = 6,610,418,246,309,233/78,849,117.60
  6. Step 6: Final answer
    x = 83,836,299.60

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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.