Home / 108,798,810.40-163,198,215.60-76,487,197.60

Finding the Fourth Proportional to 108,798,810.40, 163,198,215.60 and 76,487,197.60

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Solution

The fourth proportional to 108,798,810.40, 163,198,215.60 and 76,487,197.60 is: 114,730,796.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,798,810.40 : 163,198,215.60 = 76,487,197.60 : x
  2. Step 2: Convert to fraction form
    108,798,810.40/163,198,215.60 = 76,487,197.60/x
  3. Step 3: Cross multiply
    108,798,810.40x = 163,198,215.60 × 76,487,197.60
  4. Step 4: Simplify right side
    108,798,810.40x = 12,482,574,164,564,602
  5. Step 5: Solve for x
    x = 12,482,574,164,564,602/108,798,810.40
  6. Step 6: Final answer
    x = 114,730,796.40

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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.