Home / 113,878,046.20-170,817,069.30-83,421,009.40

Finding the Fourth Proportional to 113,878,046.20, 170,817,069.30 and 83,421,009.40

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Solution

The fourth proportional to 113,878,046.20, 170,817,069.30 and 83,421,009.40 is: 125,131,514.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,878,046.20 : 170,817,069.30 = 83,421,009.40 : x
  2. Step 2: Convert to fraction form
    113,878,046.20/170,817,069.30 = 83,421,009.40/x
  3. Step 3: Cross multiply
    113,878,046.20x = 170,817,069.30 × 83,421,009.40
  4. Step 4: Simplify right side
    113,878,046.20x = 14,249,732,343,755,754
  5. Step 5: Solve for x
    x = 14,249,732,343,755,754/113,878,046.20
  6. Step 6: Final answer
    x = 125,131,514.10

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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.