Home / 217,830,903.90-326,746,355.85-191,471,430.30

Finding the Fourth Proportional to 217,830,903.90, 326,746,355.85 and 191,471,430.30

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Solution

The fourth proportional to 217,830,903.90, 326,746,355.85 and 191,471,430.30 is: 287,207,145.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,830,903.90 : 326,746,355.85 = 191,471,430.30 : x
  2. Step 2: Convert to fraction form
    217,830,903.90/326,746,355.85 = 191,471,430.30/x
  3. Step 3: Cross multiply
    217,830,903.90x = 326,746,355.85 × 191,471,430.30
  4. Step 4: Simplify right side
    217,830,903.90x = 62,562,592,099,912,280
  5. Step 5: Solve for x
    x = 62,562,592,099,912,280/217,830,903.90
  6. Step 6: Final answer
    x = 287,207,145.45

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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.