Home / 90,009,820.40-135,014,730.60-88,574,929.70

Finding the Fourth Proportional to 90,009,820.40, 135,014,730.60 and 88,574,929.70

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Solution

The fourth proportional to 90,009,820.40, 135,014,730.60 and 88,574,929.70 is: 132,862,394.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,009,820.40 : 135,014,730.60 = 88,574,929.70 : x
  2. Step 2: Convert to fraction form
    90,009,820.40/135,014,730.60 = 88,574,929.70/x
  3. Step 3: Cross multiply
    90,009,820.40x = 135,014,730.60 × 88,574,929.70
  4. Step 4: Simplify right side
    90,009,820.40x = 11,958,920,271,359,438
  5. Step 5: Solve for x
    x = 11,958,920,271,359,438/90,009,820.40
  6. Step 6: Final answer
    x = 132,862,394.55

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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.