Home / 347,857,345.40-521,786,018.10-143,280,116.60

Finding the Fourth Proportional to 347,857,345.40, 521,786,018.10 and 143,280,116.60

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Solution

The fourth proportional to 347,857,345.40, 521,786,018.10 and 143,280,116.60 is: 214,920,174.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,857,345.40 : 521,786,018.10 = 143,280,116.60 : x
  2. Step 2: Convert to fraction form
    347,857,345.40/521,786,018.10 = 143,280,116.60/x
  3. Step 3: Cross multiply
    347,857,345.40x = 521,786,018.10 × 143,280,116.60
  4. Step 4: Simplify right side
    347,857,345.40x = 74,761,561,513,617,712
  5. Step 5: Solve for x
    x = 74,761,561,513,617,712/347,857,345.40
  6. Step 6: Final answer
    x = 214,920,174.90

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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.