Home / 498,506,687.81-747,091,629.42-387,975,826.49

Finding the Fourth Proportional to 498,506,687.81, 747,091,629.42 and 387,975,826.49

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Solution

The fourth proportional to 498,506,687.81, 747,091,629.42 and 387,975,826.49 is: 581,443,538.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,506,687.81 : 747,091,629.42 = 387,975,826.49 : x
  2. Step 2: Convert to fraction form
    498,506,687.81/747,091,629.42 = 387,975,826.49/x
  3. Step 3: Cross multiply
    498,506,687.81x = 747,091,629.42 × 387,975,826.49
  4. Step 4: Simplify right side
    498,506,687.81x = 289,853,492,387,985,280
  5. Step 5: Solve for x
    x = 289,853,492,387,985,280/498,506,687.81
  6. Step 6: Final answer
    x = 581,443,538.22

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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.