Home / 514,327,739.41-709,771,740.25-279,378,583.65

Finding the Fourth Proportional to 514,327,739.41, 709,771,740.25 and 279,378,583.65

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Solution

The fourth proportional to 514,327,739.41, 709,771,740.25 and 279,378,583.65 is: 385,542,152.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,327,739.41 : 709,771,740.25 = 279,378,583.65 : x
  2. Step 2: Convert to fraction form
    514,327,739.41/709,771,740.25 = 279,378,583.65/x
  3. Step 3: Cross multiply
    514,327,739.41x = 709,771,740.25 × 279,378,583.65
  4. Step 4: Simplify right side
    514,327,739.41x = 198,295,023,506,029,440
  5. Step 5: Solve for x
    x = 198,295,023,506,029,440/514,327,739.41
  6. Step 6: Final answer
    x = 385,542,152.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.