Home / 213,124,621.20-319,686,943.95-51,566,557.20

Finding the Fourth Proportional to 213,124,621.20, 319,686,943.95 and 51,566,557.20

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Solution

The fourth proportional to 213,124,621.20, 319,686,943.95 and 51,566,557.20 is: 77,349,838.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,124,621.20 : 319,686,943.95 = 51,566,557.20 : x
  2. Step 2: Convert to fraction form
    213,124,621.20/319,686,943.95 = 51,566,557.20/x
  3. Step 3: Cross multiply
    213,124,621.20x = 319,686,943.95 × 51,566,557.20
  4. Step 4: Simplify right side
    213,124,621.20x = 16,485,155,081,290,870
  5. Step 5: Solve for x
    x = 16,485,155,081,290,870/213,124,621.20
  6. Step 6: Final answer
    x = 77,349,838.74

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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.