Home / 154,185,926.40-212,824,223.69-99,181,782.90

Finding the Fourth Proportional to 154,185,926.40, 212,824,223.69 and 99,181,782.90

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Solution

The fourth proportional to 154,185,926.40, 212,824,223.69 and 99,181,782.90 is: 136,901,508.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,185,926.40 : 212,824,223.69 = 99,181,782.90 : x
  2. Step 2: Convert to fraction form
    154,185,926.40/212,824,223.69 = 99,181,782.90/x
  3. Step 3: Cross multiply
    154,185,926.40x = 212,824,223.69 × 99,181,782.90
  4. Step 4: Simplify right side
    154,185,926.40x = 21,108,285,949,386,708
  5. Step 5: Solve for x
    x = 21,108,285,949,386,708/154,185,926.40
  6. Step 6: Final answer
    x = 136,901,508.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.