Home / 151,351,193.32-208,864,638.78-81,736,567.50

Finding the Fourth Proportional to 151,351,193.32, 208,864,638.78 and 81,736,567.50

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Solution

The fourth proportional to 151,351,193.32, 208,864,638.78 and 81,736,567.50 is: 112,796,458.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,351,193.32 : 208,864,638.78 = 81,736,567.50 : x
  2. Step 2: Convert to fraction form
    151,351,193.32/208,864,638.78 = 81,736,567.50/x
  3. Step 3: Cross multiply
    151,351,193.32x = 208,864,638.78 × 81,736,567.50
  4. Step 4: Simplify right side
    151,351,193.32x = 17,071,878,646,004,588
  5. Step 5: Solve for x
    x = 17,071,878,646,004,588/151,351,193.32
  6. Step 6: Final answer
    x = 112,796,458.83

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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.