Home / 90,717,405.72-136,038,272.88-28,452,677.64

Finding the Fourth Proportional to 90,717,405.72, 136,038,272.88 and 28,452,677.64

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Solution

The fourth proportional to 90,717,405.72, 136,038,272.88 and 28,452,677.64 is: 42,667,149.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,717,405.72 : 136,038,272.88 = 28,452,677.64 : x
  2. Step 2: Convert to fraction form
    90,717,405.72/136,038,272.88 = 28,452,677.64/x
  3. Step 3: Cross multiply
    90,717,405.72x = 136,038,272.88 × 28,452,677.64
  4. Step 4: Simplify right side
    90,717,405.72x = 3,870,653,124,956,994.50
  5. Step 5: Solve for x
    x = 3,870,653,124,956,994.50/90,717,405.72
  6. Step 6: Final answer
    x = 42,667,149.64

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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.