Home / 399,178,983.40-598,768,475.10-291,683,559.40

Finding the Fourth Proportional to 399,178,983.40, 598,768,475.10 and 291,683,559.40

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Solution

The fourth proportional to 399,178,983.40, 598,768,475.10 and 291,683,559.40 is: 437,525,339.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,178,983.40 : 598,768,475.10 = 291,683,559.40 : x
  2. Step 2: Convert to fraction form
    399,178,983.40/598,768,475.10 = 291,683,559.40/x
  3. Step 3: Cross multiply
    399,178,983.40x = 598,768,475.10 × 291,683,559.40
  4. Step 4: Simplify right side
    399,178,983.40x = 174,650,920,073,678,272
  5. Step 5: Solve for x
    x = 174,650,920,073,678,272/399,178,983.40
  6. Step 6: Final answer
    x = 437,525,339.10

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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.