Home / 18,671,567.40-28,007,351.10-12,573,281.94

Finding the Fourth Proportional to 18,671,567.40, 28,007,351.10 and 12,573,281.94

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Solution

The fourth proportional to 18,671,567.40, 28,007,351.10 and 12,573,281.94 is: 18,859,922.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,671,567.40 : 28,007,351.10 = 12,573,281.94 : x
  2. Step 2: Convert to fraction form
    18,671,567.40/28,007,351.10 = 12,573,281.94/x
  3. Step 3: Cross multiply
    18,671,567.40x = 28,007,351.10 × 12,573,281.94
  4. Step 4: Simplify right side
    18,671,567.40x = 352,144,321,772,869.12
  5. Step 5: Solve for x
    x = 352,144,321,772,869.12/18,671,567.40
  6. Step 6: Final answer
    x = 18,859,922.91

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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.