Home / 478,334,693.30-660,101,885.05-258,318,119.30

Finding the Fourth Proportional to 478,334,693.30, 660,101,885.05 and 258,318,119.30

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Solution

The fourth proportional to 478,334,693.30, 660,101,885.05 and 258,318,119.30 is: 356,479,009.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,334,693.30 : 660,101,885.05 = 258,318,119.30 : x
  2. Step 2: Convert to fraction form
    478,334,693.30/660,101,885.05 = 258,318,119.30/x
  3. Step 3: Cross multiply
    478,334,693.30x = 660,101,885.05 × 258,318,119.30
  4. Step 4: Simplify right side
    478,334,693.30x = 170,516,277,492,500,768
  5. Step 5: Solve for x
    x = 170,516,277,492,500,768/478,334,693.30
  6. Step 6: Final answer
    x = 356,479,009.11

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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.