Home / 19,154,391.34-28,730,783.30-8,915,730.32

Finding the Fourth Proportional to 19,154,391.34, 28,730,783.30 and 8,915,730.32

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Solution

The fourth proportional to 19,154,391.34, 28,730,783.30 and 8,915,730.32 is: 13,373,221.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,154,391.34 : 28,730,783.30 = 8,915,730.32 : x
  2. Step 2: Convert to fraction form
    19,154,391.34/28,730,783.30 = 8,915,730.32/x
  3. Step 3: Cross multiply
    19,154,391.34x = 28,730,783.30 × 8,915,730.32
  4. Step 4: Simplify right side
    19,154,391.34x = 256,155,915,785,159.66
  5. Step 5: Solve for x
    x = 256,155,915,785,159.66/19,154,391.34
  6. Step 6: Final answer
    x = 13,373,221.38

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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.