Home / 168,403,209.20-252,604,813.80-155,806,089.20

Finding the Fourth Proportional to 168,403,209.20, 252,604,813.80 and 155,806,089.20

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Solution

The fourth proportional to 168,403,209.20, 252,604,813.80 and 155,806,089.20 is: 233,709,133.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,403,209.20 : 252,604,813.80 = 155,806,089.20 : x
  2. Step 2: Convert to fraction form
    168,403,209.20/252,604,813.80 = 155,806,089.20/x
  3. Step 3: Cross multiply
    168,403,209.20x = 252,604,813.80 × 155,806,089.20
  4. Step 4: Simplify right side
    168,403,209.20x = 39,357,368,151,272,192
  5. Step 5: Solve for x
    x = 39,357,368,151,272,192/168,403,209.20
  6. Step 6: Final answer
    x = 233,709,133.80

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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.