Home / 132,678,009.60-199,017,014.40-86,761,507.20

Finding the Fourth Proportional to 132,678,009.60, 199,017,014.40 and 86,761,507.20

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Solution

The fourth proportional to 132,678,009.60, 199,017,014.40 and 86,761,507.20 is: 130,142,260.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,678,009.60 : 199,017,014.40 = 86,761,507.20 : x
  2. Step 2: Convert to fraction form
    132,678,009.60/199,017,014.40 = 86,761,507.20/x
  3. Step 3: Cross multiply
    132,678,009.60x = 199,017,014.40 × 86,761,507.20
  4. Step 4: Simplify right side
    132,678,009.60x = 17,267,016,127,788,104
  5. Step 5: Solve for x
    x = 17,267,016,127,788,104/132,678,009.60
  6. Step 6: Final answer
    x = 130,142,260.80

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1.5x scale

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.