Home / 218,829,787.40-328,244,681.10-208,752,091.40

Finding the Fourth Proportional to 218,829,787.40, 328,244,681.10 and 208,752,091.40

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Solution

The fourth proportional to 218,829,787.40, 328,244,681.10 and 208,752,091.40 is: 313,128,137.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,829,787.40 : 328,244,681.10 = 208,752,091.40 : x
  2. Step 2: Convert to fraction form
    218,829,787.40/328,244,681.10 = 208,752,091.40/x
  3. Step 3: Cross multiply
    218,829,787.40x = 328,244,681.10 × 208,752,091.40
  4. Step 4: Simplify right side
    218,829,787.40x = 68,521,763,670,551,056
  5. Step 5: Solve for x
    x = 68,521,763,670,551,056/218,829,787.40
  6. Step 6: Final answer
    x = 313,128,137.10

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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.