Home / 31,066,145.46-42,853,503.87-19,443,530.79

Finding the Fourth Proportional to 31,066,145.46, 42,853,503.87 and 19,443,530.79

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Solution

The fourth proportional to 31,066,145.46, 42,853,503.87 and 19,443,530.79 is: 26,820,946.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,066,145.46 : 42,853,503.87 = 19,443,530.79 : x
  2. Step 2: Convert to fraction form
    31,066,145.46/42,853,503.87 = 19,443,530.79/x
  3. Step 3: Cross multiply
    31,066,145.46x = 42,853,503.87 × 19,443,530.79
  4. Step 4: Simplify right side
    31,066,145.46x = 833,223,421,955,729.12
  5. Step 5: Solve for x
    x = 833,223,421,955,729.12/31,066,145.46
  6. Step 6: Final answer
    x = 26,820,946.39

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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.