Home / 312,322,456.95-431,005,031.45-173,102,206.83

Finding the Fourth Proportional to 312,322,456.95, 431,005,031.45 and 173,102,206.83

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Solution

The fourth proportional to 312,322,456.95, 431,005,031.45 and 173,102,206.83 is: 238,881,068.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,322,456.95 : 431,005,031.45 = 173,102,206.83 : x
  2. Step 2: Convert to fraction form
    312,322,456.95/431,005,031.45 = 173,102,206.83/x
  3. Step 3: Cross multiply
    312,322,456.95x = 431,005,031.45 × 173,102,206.83
  4. Step 4: Simplify right side
    312,322,456.95x = 74,607,922,097,963,056
  5. Step 5: Solve for x
    x = 74,607,922,097,963,056/312,322,456.95
  6. Step 6: Final answer
    x = 238,881,068.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.