Home / 90,009,815.40-135,014,723.10-88,574,924.70

Finding the Fourth Proportional to 90,009,815.40, 135,014,723.10 and 88,574,924.70

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Solution

The fourth proportional to 90,009,815.40, 135,014,723.10 and 88,574,924.70 is: 132,862,387.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,009,815.40 : 135,014,723.10 = 88,574,924.70 : x
  2. Step 2: Convert to fraction form
    90,009,815.40/135,014,723.10 = 88,574,924.70/x
  3. Step 3: Cross multiply
    90,009,815.40x = 135,014,723.10 × 88,574,924.70
  4. Step 4: Simplify right side
    90,009,815.40x = 11,958,918,931,973,850
  5. Step 5: Solve for x
    x = 11,958,918,931,973,850/90,009,815.40
  6. Step 6: Final answer
    x = 132,862,387.05

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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.