Home / 289,586,543.90-434,379,815.85-153,537,647.90

Finding the Fourth Proportional to 289,586,543.90, 434,379,815.85 and 153,537,647.90

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Solution

The fourth proportional to 289,586,543.90, 434,379,815.85 and 153,537,647.90 is: 230,306,471.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,586,543.90 : 434,379,815.85 = 153,537,647.90 : x
  2. Step 2: Convert to fraction form
    289,586,543.90/434,379,815.85 = 153,537,647.90/x
  3. Step 3: Cross multiply
    289,586,543.90x = 434,379,815.85 × 153,537,647.90
  4. Step 4: Simplify right side
    289,586,543.90x = 66,693,655,220,844,144
  5. Step 5: Solve for x
    x = 66,693,655,220,844,144/289,586,543.90
  6. Step 6: Final answer
    x = 230,306,471.85

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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.