Home / 20,868,885.16-28,772,580.82-14,915,397.32

Finding the Fourth Proportional to 20,868,885.16, 28,772,580.82 and 14,915,397.32

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Solution

The fourth proportional to 20,868,885.16, 28,772,580.82 and 14,915,397.32 is: 20,564,322.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,868,885.16 : 28,772,580.82 = 14,915,397.32 : x
  2. Step 2: Convert to fraction form
    20,868,885.16/28,772,580.82 = 14,915,397.32/x
  3. Step 3: Cross multiply
    20,868,885.16x = 28,772,580.82 × 14,915,397.32
  4. Step 4: Simplify right side
    20,868,885.16x = 429,154,474,852,111.44
  5. Step 5: Solve for x
    x = 429,154,474,852,111.44/20,868,885.16
  6. Step 6: Final answer
    x = 20,564,322.03

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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.