Home / 354,643,865.56-489,403,899.06-198,013,638.52

Finding the Fourth Proportional to 354,643,865.56, 489,403,899.06 and 198,013,638.52

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Solution

The fourth proportional to 354,643,865.56, 489,403,899.06 and 198,013,638.52 is: 273,256,233.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,643,865.56 : 489,403,899.06 = 198,013,638.52 : x
  2. Step 2: Convert to fraction form
    354,643,865.56/489,403,899.06 = 198,013,638.52/x
  3. Step 3: Cross multiply
    354,643,865.56x = 489,403,899.06 × 198,013,638.52
  4. Step 4: Simplify right side
    354,643,865.56x = 96,908,646,758,745,408
  5. Step 5: Solve for x
    x = 96,908,646,758,745,408/354,643,865.56
  6. Step 6: Final answer
    x = 273,256,233.00

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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.