Home / 289,586,543.40-434,379,815.10-153,537,647.40

Finding the Fourth Proportional to 289,586,543.40, 434,379,815.10 and 153,537,647.40

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Solution

The fourth proportional to 289,586,543.40, 434,379,815.10 and 153,537,647.40 is: 230,306,471.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,586,543.40 : 434,379,815.10 = 153,537,647.40 : x
  2. Step 2: Convert to fraction form
    289,586,543.40/434,379,815.10 = 153,537,647.40/x
  3. Step 3: Cross multiply
    289,586,543.40x = 434,379,815.10 × 153,537,647.40
  4. Step 4: Simplify right side
    289,586,543.40x = 66,693,654,888,501,000
  5. Step 5: Solve for x
    x = 66,693,654,888,501,000/289,586,543.40
  6. Step 6: Final answer
    x = 230,306,471.10

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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.