Home / 287,712,951.70-431,569,427.55-195,879,946.90

Finding the Fourth Proportional to 287,712,951.70, 431,569,427.55 and 195,879,946.90

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Solution

The fourth proportional to 287,712,951.70, 431,569,427.55 and 195,879,946.90 is: 293,819,920.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,712,951.70 : 431,569,427.55 = 195,879,946.90 : x
  2. Step 2: Convert to fraction form
    287,712,951.70/431,569,427.55 = 195,879,946.90/x
  3. Step 3: Cross multiply
    287,712,951.70x = 431,569,427.55 × 195,879,946.90
  4. Step 4: Simplify right side
    287,712,951.70x = 84,535,796,552,157,408
  5. Step 5: Solve for x
    x = 84,535,796,552,157,408/287,712,951.70
  6. Step 6: Final answer
    x = 293,819,920.35

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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.