Home / 154,573,421.80-231,888,126.30-77,702,996.20

Finding the Fourth Proportional to 154,573,421.80, 231,888,126.30 and 77,702,996.20

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Solution

The fourth proportional to 154,573,421.80, 231,888,126.30 and 77,702,996.20 is: 116,568,566.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,573,421.80 : 231,888,126.30 = 77,702,996.20 : x
  2. Step 2: Convert to fraction form
    154,573,421.80/231,888,126.30 = 77,702,996.20/x
  3. Step 3: Cross multiply
    154,573,421.80x = 231,888,126.30 × 77,702,996.20
  4. Step 4: Simplify right side
    154,573,421.80x = 18,018,402,196,714,020
  5. Step 5: Solve for x
    x = 18,018,402,196,714,020/154,573,421.80
  6. Step 6: Final answer
    x = 116,568,566.49

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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.