Home / 90,772,763.40-136,159,145.10-30,188,489.40

Finding the Fourth Proportional to 90,772,763.40, 136,159,145.10 and 30,188,489.40

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Solution

The fourth proportional to 90,772,763.40, 136,159,145.10 and 30,188,489.40 is: 45,282,734.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,772,763.40 : 136,159,145.10 = 30,188,489.40 : x
  2. Step 2: Convert to fraction form
    90,772,763.40/136,159,145.10 = 30,188,489.40/x
  3. Step 3: Cross multiply
    90,772,763.40x = 136,159,145.10 × 30,188,489.40
  4. Step 4: Simplify right side
    90,772,763.40x = 4,110,438,908,564,411.50
  5. Step 5: Solve for x
    x = 4,110,438,908,564,411.50/90,772,763.40
  6. Step 6: Final answer
    x = 45,282,734.10

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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.