Home / 268,406,890.86-402,726,920.40-145,671,920.31

Finding the Fourth Proportional to 268,406,890.86, 402,726,920.40 and 145,671,920.31

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Solution

The fourth proportional to 268,406,890.86, 402,726,920.40 and 145,671,920.31 is: 218,571,153.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,406,890.86 : 402,726,920.40 = 145,671,920.31 : x
  2. Step 2: Convert to fraction form
    268,406,890.86/402,726,920.40 = 145,671,920.31/x
  3. Step 3: Cross multiply
    268,406,890.86x = 402,726,920.40 × 145,671,920.31
  4. Step 4: Simplify right side
    268,406,890.86x = 58,666,003,855,200,512
  5. Step 5: Solve for x
    x = 58,666,003,855,200,512/268,406,890.86
  6. Step 6: Final answer
    x = 218,571,153.92

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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.