Home / 185,343,123.90-278,031,023.94-68,759,830.38

Finding the Fourth Proportional to 185,343,123.90, 278,031,023.94 and 68,759,830.38

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Solution

The fourth proportional to 185,343,123.90, 278,031,023.94 and 68,759,830.38 is: 103,145,806.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,343,123.90 : 278,031,023.94 = 68,759,830.38 : x
  2. Step 2: Convert to fraction form
    185,343,123.90/278,031,023.94 = 68,759,830.38/x
  3. Step 3: Cross multiply
    185,343,123.90x = 278,031,023.94 × 68,759,830.38
  4. Step 4: Simplify right side
    185,343,123.90x = 19,117,366,046,492,116
  5. Step 5: Solve for x
    x = 19,117,366,046,492,116/185,343,123.90
  6. Step 6: Final answer
    x = 103,145,806.78

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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.