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Finding the Fourth Proportional to 18,671,607.60, 28,007,411.40 and 17,475,865.35

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Solution

The fourth proportional to 18,671,607.60, 28,007,411.40 and 17,475,865.35 is: 26,213,798.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,671,607.60 : 28,007,411.40 = 17,475,865.35 : x
  2. Step 2: Convert to fraction form
    18,671,607.60/28,007,411.40 = 17,475,865.35/x
  3. Step 3: Cross multiply
    18,671,607.60x = 28,007,411.40 × 17,475,865.35
  4. Step 4: Simplify right side
    18,671,607.60x = 489,453,750,428,455
  5. Step 5: Solve for x
    x = 489,453,750,428,455/18,671,607.60
  6. Step 6: Final answer
    x = 26,213,798.03

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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.