Home / 147,645,678.86-221,417,228.57-82,166,740.31

Finding the Fourth Proportional to 147,645,678.86, 221,417,228.57 and 82,166,740.31

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Solution

The fourth proportional to 147,645,678.86, 221,417,228.57 and 82,166,740.31 is: 123,221,567.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,645,678.86 : 221,417,228.57 = 82,166,740.31 : x
  2. Step 2: Convert to fraction form
    147,645,678.86/221,417,228.57 = 82,166,740.31/x
  3. Step 3: Cross multiply
    147,645,678.86x = 221,417,228.57 × 82,166,740.31
  4. Step 4: Simplify right side
    147,645,678.86x = 18,193,131,918,553,184
  5. Step 5: Solve for x
    x = 18,193,131,918,553,184/147,645,678.86
  6. Step 6: Final answer
    x = 123,221,567.06

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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.