Home / 630,436,705.40-945,655,058.10-388,572,001.40

Finding the Fourth Proportional to 630,436,705.40, 945,655,058.10 and 388,572,001.40

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Solution

The fourth proportional to 630,436,705.40, 945,655,058.10 and 388,572,001.40 is: 582,858,002.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,436,705.40 : 945,655,058.10 = 388,572,001.40 : x
  2. Step 2: Convert to fraction form
    630,436,705.40/945,655,058.10 = 388,572,001.40/x
  3. Step 3: Cross multiply
    630,436,705.40x = 945,655,058.10 × 388,572,001.40
  4. Step 4: Simplify right side
    630,436,705.40x = 367,455,078,559,950,272
  5. Step 5: Solve for x
    x = 367,455,078,559,950,272/630,436,705.40
  6. Step 6: Final answer
    x = 582,858,002.10

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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.