Home / 153,110,151.78-211,292,343.66-87,031,054.86

Finding the Fourth Proportional to 153,110,151.78, 211,292,343.66 and 87,031,054.86

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Solution

The fourth proportional to 153,110,151.78, 211,292,343.66 and 87,031,054.86 is: 120,103,045.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,110,151.78 : 211,292,343.66 = 87,031,054.86 : x
  2. Step 2: Convert to fraction form
    153,110,151.78/211,292,343.66 = 87,031,054.86/x
  3. Step 3: Cross multiply
    153,110,151.78x = 211,292,343.66 × 87,031,054.86
  4. Step 4: Simplify right side
    153,110,151.78x = 18,388,995,552,571,432
  5. Step 5: Solve for x
    x = 18,388,995,552,571,432/153,110,151.78
  6. Step 6: Final answer
    x = 120,103,045.68

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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.