Home / 431,054,429.80-646,518,659.10-124,314,557.80

Finding the Fourth Proportional to 431,054,429.80, 646,518,659.10 and 124,314,557.80

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Solution

The fourth proportional to 431,054,429.80, 646,518,659.10 and 124,314,557.80 is: 186,453,671.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,054,429.80 : 646,518,659.10 = 124,314,557.80 : x
  2. Step 2: Convert to fraction form
    431,054,429.80/646,518,659.10 = 124,314,557.80/x
  3. Step 3: Cross multiply
    431,054,429.80x = 646,518,659.10 × 124,314,557.80
  4. Step 4: Simplify right side
    431,054,429.80x = 80,371,681,215,465,440
  5. Step 5: Solve for x
    x = 80,371,681,215,465,440/431,054,429.80
  6. Step 6: Final answer
    x = 186,453,671.88

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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.