Home / 478,620,123.23-660,495,771.32-258,603,549.23

Finding the Fourth Proportional to 478,620,123.23, 660,495,771.32 and 258,603,549.23

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Solution

The fourth proportional to 478,620,123.23, 660,495,771.32 and 258,603,549.23 is: 356,872,898.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,620,123.23 : 660,495,771.32 = 258,603,549.23 : x
  2. Step 2: Convert to fraction form
    478,620,123.23/660,495,771.32 = 258,603,549.23/x
  3. Step 3: Cross multiply
    478,620,123.23x = 660,495,771.32 × 258,603,549.23
  4. Step 4: Simplify right side
    478,620,123.23x = 170,806,550,713,344,224
  5. Step 5: Solve for x
    x = 170,806,550,713,344,224/478,620,123.23
  6. Step 6: Final answer
    x = 356,872,898.62

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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.