Home / 162,377,631.42-223,864,357.95-128,997,866.22

Finding the Fourth Proportional to 162,377,631.42, 223,864,357.95 and 128,997,866.22

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Solution

The fourth proportional to 162,377,631.42, 223,864,357.95 and 128,997,866.22 is: 177,844,843.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,377,631.42 : 223,864,357.95 = 128,997,866.22 : x
  2. Step 2: Convert to fraction form
    162,377,631.42/223,864,357.95 = 128,997,866.22/x
  3. Step 3: Cross multiply
    162,377,631.42x = 223,864,357.95 × 128,997,866.22
  4. Step 4: Simplify right side
    162,377,631.42x = 28,878,024,498,260,292
  5. Step 5: Solve for x
    x = 28,878,024,498,260,292/162,377,631.42
  6. Step 6: Final answer
    x = 177,844,843.81

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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.