Home / 100,582,028.32-151,545,155.14-90,877,920.52

Finding the Fourth Proportional to 100,582,028.32, 151,545,155.14 and 90,877,920.52

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Solution

The fourth proportional to 100,582,028.32, 151,545,155.14 and 90,877,920.52 is: 136,924,148.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,582,028.32 : 151,545,155.14 = 90,877,920.52 : x
  2. Step 2: Convert to fraction form
    100,582,028.32/151,545,155.14 = 90,877,920.52/x
  3. Step 3: Cross multiply
    100,582,028.32x = 151,545,155.14 × 90,877,920.52
  4. Step 4: Simplify right side
    100,582,028.32x = 13,772,108,564,003,988
  5. Step 5: Solve for x
    x = 13,772,108,564,003,988/100,582,028.32
  6. Step 6: Final answer
    x = 136,924,148.32

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.