Home / 153,601,424.46-211,990,703.32-86,634,128.82

Finding the Fourth Proportional to 153,601,424.46, 211,990,703.32 and 86,634,128.82

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Solution

The fourth proportional to 153,601,424.46, 211,990,703.32 and 86,634,128.82 is: 119,566,794.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,601,424.46 : 211,990,703.32 = 86,634,128.82 : x
  2. Step 2: Convert to fraction form
    153,601,424.46/211,990,703.32 = 86,634,128.82/x
  3. Step 3: Cross multiply
    153,601,424.46x = 211,990,703.32 × 86,634,128.82
  4. Step 4: Simplify right side
    153,601,424.46x = 18,365,629,900,067,280
  5. Step 5: Solve for x
    x = 18,365,629,900,067,280/153,601,424.46
  6. Step 6: Final answer
    x = 119,566,794.15

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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.