Home / 657,088,040.40-985,568,005.80-172,413,848.40

Finding the Fourth Proportional to 657,088,040.40, 985,568,005.80 and 172,413,848.40

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Solution

The fourth proportional to 657,088,040.40, 985,568,005.80 and 172,413,848.40 is: 258,603,965.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,088,040.40 : 985,568,005.80 = 172,413,848.40 : x
  2. Step 2: Convert to fraction form
    657,088,040.40/985,568,005.80 = 172,413,848.40/x
  3. Step 3: Cross multiply
    657,088,040.40x = 985,568,005.80 × 172,413,848.40
  4. Step 4: Simplify right side
    657,088,040.40x = 169,925,572,739,891,520
  5. Step 5: Solve for x
    x = 169,925,572,739,891,520/657,088,040.40
  6. Step 6: Final answer
    x = 258,603,965.21

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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.