Home / 391,529,173.59-586,016,316.89-287,870,894.55

Finding the Fourth Proportional to 391,529,173.59, 586,016,316.89 and 287,870,894.55

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Solution

The fourth proportional to 391,529,173.59, 586,016,316.89 and 287,870,894.55 is: 430,867,104.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,529,173.59 : 586,016,316.89 = 287,870,894.55 : x
  2. Step 2: Convert to fraction form
    391,529,173.59/586,016,316.89 = 287,870,894.55/x
  3. Step 3: Cross multiply
    391,529,173.59x = 586,016,316.89 × 287,870,894.55
  4. Step 4: Simplify right side
    391,529,173.59x = 168,697,041,362,581,216
  5. Step 5: Solve for x
    x = 168,697,041,362,581,216/391,529,173.59
  6. Step 6: Final answer
    x = 430,867,104.53

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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.