Home / 287,246,117.40-431,139,780.90-151,029,259.80

Finding the Fourth Proportional to 287,246,117.40, 431,139,780.90 and 151,029,259.80

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Solution

The fourth proportional to 287,246,117.40, 431,139,780.90 and 151,029,259.80 is: 226,686,169.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,246,117.40 : 431,139,780.90 = 151,029,259.80 : x
  2. Step 2: Convert to fraction form
    287,246,117.40/431,139,780.90 = 151,029,259.80/x
  3. Step 3: Cross multiply
    287,246,117.40x = 431,139,780.90 × 151,029,259.80
  4. Step 4: Simplify right side
    287,246,117.40x = 65,114,721,979,661,176
  5. Step 5: Solve for x
    x = 65,114,721,979,661,176/287,246,117.40
  6. Step 6: Final answer
    x = 226,686,169.23

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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.