Home / 12,447,657.90-18,671,486.85-11,691,830.70

Finding the Fourth Proportional to 12,447,657.90, 18,671,486.85 and 11,691,830.70

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Solution

The fourth proportional to 12,447,657.90, 18,671,486.85 and 11,691,830.70 is: 17,537,746.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,447,657.90 : 18,671,486.85 = 11,691,830.70 : x
  2. Step 2: Convert to fraction form
    12,447,657.90/18,671,486.85 = 11,691,830.70/x
  3. Step 3: Cross multiply
    12,447,657.90x = 18,671,486.85 × 11,691,830.70
  4. Step 4: Simplify right side
    12,447,657.90x = 218,303,863,167,476.31
  5. Step 5: Solve for x
    x = 218,303,863,167,476.31/12,447,657.90
  6. Step 6: Final answer
    x = 17,537,746.05

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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.