Home / 155,435,509.80-233,302,563.90-78,845,020.20

Finding the Fourth Proportional to 155,435,509.80, 233,302,563.90 and 78,845,020.20

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Solution

The fourth proportional to 155,435,509.80, 233,302,563.90 and 78,845,020.20 is: 118,343,262.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,435,509.80 : 233,302,563.90 = 78,845,020.20 : x
  2. Step 2: Convert to fraction form
    155,435,509.80/233,302,563.90 = 78,845,020.20/x
  3. Step 3: Cross multiply
    155,435,509.80x = 233,302,563.90 × 78,845,020.20
  4. Step 4: Simplify right side
    155,435,509.80x = 18,394,745,363,407,292
  5. Step 5: Solve for x
    x = 18,394,745,363,407,292/155,435,509.80
  6. Step 6: Final answer
    x = 118,343,262.66

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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.