Home / 108,889,721.80-163,145,625.90-70,531,491.40

Finding the Fourth Proportional to 108,889,721.80, 163,145,625.90 and 70,531,491.40

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Solution

The fourth proportional to 108,889,721.80, 163,145,625.90 and 70,531,491.40 is: 105,674,843.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,889,721.80 : 163,145,625.90 = 70,531,491.40 : x
  2. Step 2: Convert to fraction form
    108,889,721.80/163,145,625.90 = 70,531,491.40/x
  3. Step 3: Cross multiply
    108,889,721.80x = 163,145,625.90 × 70,531,491.40
  4. Step 4: Simplify right side
    108,889,721.80x = 11,506,904,310,113,468
  5. Step 5: Solve for x
    x = 11,506,904,310,113,468/108,889,721.80
  6. Step 6: Final answer
    x = 105,674,843.50

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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.