Home / 478,334,686.80-660,101,876.08-258,318,112.80

Finding the Fourth Proportional to 478,334,686.80, 660,101,876.08 and 258,318,112.80

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Solution

The fourth proportional to 478,334,686.80, 660,101,876.08 and 258,318,112.80 is: 356,479,000.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,334,686.80 : 660,101,876.08 = 258,318,112.80 : x
  2. Step 2: Convert to fraction form
    478,334,686.80/660,101,876.08 = 258,318,112.80/x
  3. Step 3: Cross multiply
    478,334,686.80x = 660,101,876.08 × 258,318,112.80
  4. Step 4: Simplify right side
    478,334,686.80x = 170,516,270,884,725,088
  5. Step 5: Solve for x
    x = 170,516,270,884,725,088/478,334,686.80
  6. Step 6: Final answer
    x = 356,479,000.14

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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.