Home / 108,866,972.80-163,111,502.40-70,508,742.40

Finding the Fourth Proportional to 108,866,972.80, 163,111,502.40 and 70,508,742.40

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Solution

The fourth proportional to 108,866,972.80, 163,111,502.40 and 70,508,742.40 is: 105,640,733.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,866,972.80 : 163,111,502.40 = 70,508,742.40 : x
  2. Step 2: Convert to fraction form
    108,866,972.80/163,111,502.40 = 70,508,742.40/x
  3. Step 3: Cross multiply
    108,866,972.80x = 163,111,502.40 × 70,508,742.40
  4. Step 4: Simplify right side
    108,866,972.80x = 11,500,786,905,198,584
  5. Step 5: Solve for x
    x = 11,500,786,905,198,584/108,866,972.80
  6. Step 6: Final answer
    x = 105,640,733.91

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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.