Home / 326,601,005.10-489,901,507.65-145,202,477.10

Finding the Fourth Proportional to 326,601,005.10, 489,901,507.65 and 145,202,477.10

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Solution

The fourth proportional to 326,601,005.10, 489,901,507.65 and 145,202,477.10 is: 217,803,715.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,601,005.10 : 489,901,507.65 = 145,202,477.10 : x
  2. Step 2: Convert to fraction form
    326,601,005.10/489,901,507.65 = 145,202,477.10/x
  3. Step 3: Cross multiply
    326,601,005.10x = 489,901,507.65 × 145,202,477.10
  4. Step 4: Simplify right side
    326,601,005.10x = 71,134,912,445,804,592
  5. Step 5: Solve for x
    x = 71,134,912,445,804,592/326,601,005.10
  6. Step 6: Final answer
    x = 217,803,715.65

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Similar ratio
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1.5x scale

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.