Home / 258,657,346.60-388,135,319.10-97,115,612.20

Finding the Fourth Proportional to 258,657,346.60, 388,135,319.10 and 97,115,612.20

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Solution

The fourth proportional to 258,657,346.60, 388,135,319.10 and 97,115,612.20 is: 145,729,474.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,657,346.60 : 388,135,319.10 = 97,115,612.20 : x
  2. Step 2: Convert to fraction form
    258,657,346.60/388,135,319.10 = 97,115,612.20/x
  3. Step 3: Cross multiply
    258,657,346.60x = 388,135,319.10 × 97,115,612.20
  4. Step 4: Simplify right side
    258,657,346.60x = 37,693,999,130,838,856
  5. Step 5: Solve for x
    x = 37,693,999,130,838,856/258,657,346.60
  6. Step 6: Final answer
    x = 145,729,474.25

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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.