Home / 108,866,530.80-163,110,839.40-70,508,300.40

Finding the Fourth Proportional to 108,866,530.80, 163,110,839.40 and 70,508,300.40

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Solution

The fourth proportional to 108,866,530.80, 163,110,839.40 and 70,508,300.40 is: 105,640,071.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,866,530.80 : 163,110,839.40 = 70,508,300.40 : x
  2. Step 2: Convert to fraction form
    108,866,530.80/163,110,839.40 = 70,508,300.40/x
  3. Step 3: Cross multiply
    108,866,530.80x = 163,110,839.40 × 70,508,300.40
  4. Step 4: Simplify right side
    108,866,530.80x = 11,500,668,062,911,358
  5. Step 5: Solve for x
    x = 11,500,668,062,911,358/108,866,530.80
  6. Step 6: Final answer
    x = 105,640,071.18

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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.