Home / 15,115,609,083.42-20,859,549,514.65-8,432,605,655.46

Finding the Fourth Proportional to 15,115,609,083.42, 20,859,549,514.65 and 8,432,605,655.46

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Solution

The fourth proportional to 15,115,609,083.42, 20,859,549,514.65 and 8,432,605,655.46 is: 11,637,000,813.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,115,609,083.42 : 20,859,549,514.65 = 8,432,605,655.46 : x
  2. Step 2: Convert to fraction form
    15,115,609,083.42/20,859,549,514.65 = 8,432,605,655.46/x
  3. Step 3: Cross multiply
    15,115,609,083.42x = 20,859,549,514.65 × 8,432,605,655.46
  4. Step 4: Simplify right side
    15,115,609,083.42x = 175,900,355,207,585,497,088
  5. Step 5: Solve for x
    x = 175,900,355,207,585,497,088/15,115,609,083.42
  6. Step 6: Final answer
    x = 11,637,000,813.98

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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.