Home / 266,152,642.40-399,228,963.60-145,220,290.40

Finding the Fourth Proportional to 266,152,642.40, 399,228,963.60 and 145,220,290.40

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Solution

The fourth proportional to 266,152,642.40, 399,228,963.60 and 145,220,290.40 is: 217,830,435.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,152,642.40 : 399,228,963.60 = 145,220,290.40 : x
  2. Step 2: Convert to fraction form
    266,152,642.40/399,228,963.60 = 145,220,290.40/x
  3. Step 3: Cross multiply
    266,152,642.40x = 399,228,963.60 × 145,220,290.40
  4. Step 4: Simplify right side
    266,152,642.40x = 57,976,146,030,083,032
  5. Step 5: Solve for x
    x = 57,976,146,030,083,032/266,152,642.40
  6. Step 6: Final answer
    x = 217,830,435.60

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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.