Home / 281,899,417.32-389,016,422.76-158,137,437.24

Finding the Fourth Proportional to 281,899,417.32, 389,016,422.76 and 158,137,437.24

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Solution

The fourth proportional to 281,899,417.32, 389,016,422.76 and 158,137,437.24 is: 218,226,985.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,899,417.32 : 389,016,422.76 = 158,137,437.24 : x
  2. Step 2: Convert to fraction form
    281,899,417.32/389,016,422.76 = 158,137,437.24/x
  3. Step 3: Cross multiply
    281,899,417.32x = 389,016,422.76 × 158,137,437.24
  4. Step 4: Simplify right side
    281,899,417.32x = 61,518,060,139,538,808
  5. Step 5: Solve for x
    x = 61,518,060,139,538,808/281,899,417.32
  6. Step 6: Final answer
    x = 218,226,985.80

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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.