Home / 139,721,326.80-209,581,990.20-133,824,008.40

Finding the Fourth Proportional to 139,721,326.80, 209,581,990.20 and 133,824,008.40

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Solution

The fourth proportional to 139,721,326.80, 209,581,990.20 and 133,824,008.40 is: 200,736,012.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,721,326.80 : 209,581,990.20 = 133,824,008.40 : x
  2. Step 2: Convert to fraction form
    139,721,326.80/209,581,990.20 = 133,824,008.40/x
  3. Step 3: Cross multiply
    139,721,326.80x = 209,581,990.20 × 133,824,008.40
  4. Step 4: Simplify right side
    139,721,326.80x = 28,047,102,017,013,516
  5. Step 5: Solve for x
    x = 28,047,102,017,013,516/139,721,326.80
  6. Step 6: Final answer
    x = 200,736,012.60

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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.