Home / 78,885,410.40-118,272,128.40-35,775,266.40

Finding the Fourth Proportional to 78,885,410.40, 118,272,128.40 and 35,775,266.40

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Solution

The fourth proportional to 78,885,410.40, 118,272,128.40 and 35,775,266.40 is: 53,637,508.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,885,410.40 : 118,272,128.40 = 35,775,266.40 : x
  2. Step 2: Convert to fraction form
    78,885,410.40/118,272,128.40 = 35,775,266.40/x
  3. Step 3: Cross multiply
    78,885,410.40x = 118,272,128.40 × 35,775,266.40
  4. Step 4: Simplify right side
    78,885,410.40x = 4,231,216,901,205,006
  5. Step 5: Solve for x
    x = 4,231,216,901,205,006/78,885,410.40
  6. Step 6: Final answer
    x = 53,637,508.88

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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.