Home / 113,715,433.52-170,124,348.72-86,128,819

Finding the Fourth Proportional to 113,715,433.52, 170,124,348.72 and 86,128,819

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Solution

The fourth proportional to 113,715,433.52, 170,124,348.72 and 86,128,819 is: 128,853,303.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,715,433.52 : 170,124,348.72 = 86,128,819 : x
  2. Step 2: Convert to fraction form
    113,715,433.52/170,124,348.72 = 86,128,819/x
  3. Step 3: Cross multiply
    113,715,433.52x = 170,124,348.72 × 86,128,819
  4. Step 4: Simplify right side
    113,715,433.52x = 14,652,609,238,397,762
  5. Step 5: Solve for x
    x = 14,652,609,238,397,762/113,715,433.52
  6. Step 6: Final answer
    x = 128,853,303.24

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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.