Home / 55,811,442.50-77,019,387.27-31,031,437.40

Finding the Fourth Proportional to 55,811,442.50, 77,019,387.27 and 31,031,437.40

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Solution

The fourth proportional to 55,811,442.50, 77,019,387.27 and 31,031,437.40 is: 42,823,159.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,811,442.50 : 77,019,387.27 = 31,031,437.40 : x
  2. Step 2: Convert to fraction form
    55,811,442.50/77,019,387.27 = 31,031,437.40/x
  3. Step 3: Cross multiply
    55,811,442.50x = 77,019,387.27 × 31,031,437.40
  4. Step 4: Simplify right side
    55,811,442.50x = 2,390,022,294,442,719.50
  5. Step 5: Solve for x
    x = 2,390,022,294,442,719.50/55,811,442.50
  6. Step 6: Final answer
    x = 42,823,159.33

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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.