Home / 208,713,111.68-288,050,666.10-126,207,486.92

Finding the Fourth Proportional to 208,713,111.68, 288,050,666.10 and 126,207,486.92

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Solution

The fourth proportional to 208,713,111.68, 288,050,666.10 and 126,207,486.92 is: 174,182,399.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,713,111.68 : 288,050,666.10 = 126,207,486.92 : x
  2. Step 2: Convert to fraction form
    208,713,111.68/288,050,666.10 = 126,207,486.92/x
  3. Step 3: Cross multiply
    208,713,111.68x = 288,050,666.10 × 126,207,486.92
  4. Step 4: Simplify right side
    208,713,111.68x = 36,354,150,674,113,040
  5. Step 5: Solve for x
    x = 36,354,150,674,113,040/208,713,111.68
  6. Step 6: Final answer
    x = 174,182,399.86

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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.