Home / 326,602,763.90-489,337,275.45-211,528,072.70

Finding the Fourth Proportional to 326,602,763.90, 489,337,275.45 and 211,528,072.70

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Solution

The fourth proportional to 326,602,763.90, 489,337,275.45 and 211,528,072.70 is: 316,924,968.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,602,763.90 : 489,337,275.45 = 211,528,072.70 : x
  2. Step 2: Convert to fraction form
    326,602,763.90/489,337,275.45 = 211,528,072.70/x
  3. Step 3: Cross multiply
    326,602,763.90x = 489,337,275.45 × 211,528,072.70
  4. Step 4: Simplify right side
    326,602,763.90x = 103,508,570,776,207,520
  5. Step 5: Solve for x
    x = 103,508,570,776,207,520/326,602,763.90
  6. Step 6: Final answer
    x = 316,924,968.85

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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.