Home / 108,917,368.80-163,152,104.40-74,877,151.20

Finding the Fourth Proportional to 108,917,368.80, 163,152,104.40 and 74,877,151.20

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Solution

The fourth proportional to 108,917,368.80, 163,152,104.40 and 74,877,151.20 is: 112,161,769.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,917,368.80 : 163,152,104.40 = 74,877,151.20 : x
  2. Step 2: Convert to fraction form
    108,917,368.80/163,152,104.40 = 74,877,151.20/x
  3. Step 3: Cross multiply
    108,917,368.80x = 163,152,104.40 × 74,877,151.20
  4. Step 4: Simplify right side
    108,917,368.80x = 12,216,364,789,756,986
  5. Step 5: Solve for x
    x = 12,216,364,789,756,986/108,917,368.80
  6. Step 6: Final answer
    x = 112,161,769.28

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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.