Home / 86,851,397.32-130,281,285.64-28,557,784.70

Finding the Fourth Proportional to 86,851,397.32, 130,281,285.64 and 28,557,784.70

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Solution

The fourth proportional to 86,851,397.32, 130,281,285.64 and 28,557,784.70 is: 42,838,054.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,851,397.32 : 130,281,285.64 = 28,557,784.70 : x
  2. Step 2: Convert to fraction form
    86,851,397.32/130,281,285.64 = 28,557,784.70/x
  3. Step 3: Cross multiply
    86,851,397.32x = 130,281,285.64 × 28,557,784.70
  4. Step 4: Simplify right side
    86,851,397.32x = 3,720,544,905,746,321.50
  5. Step 5: Solve for x
    x = 3,720,544,905,746,321.50/86,851,397.32
  6. Step 6: Final answer
    x = 42,838,054.66

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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.