Home / 726,840,009.20-1,090,260,013.80-436,602,364.40

Finding the Fourth Proportional to 726,840,009.20, 1,090,260,013.80 and 436,602,364.40

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Solution

The fourth proportional to 726,840,009.20, 1,090,260,013.80 and 436,602,364.40 is: 654,903,546.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,840,009.20 : 1,090,260,013.80 = 436,602,364.40 : x
  2. Step 2: Convert to fraction form
    726,840,009.20/1,090,260,013.80 = 436,602,364.40/x
  3. Step 3: Cross multiply
    726,840,009.20x = 1,090,260,013.80 × 436,602,364.40
  4. Step 4: Simplify right side
    726,840,009.20x = 476,010,099,835,856,576
  5. Step 5: Solve for x
    x = 476,010,099,835,856,576/726,840,009.20
  6. Step 6: Final answer
    x = 654,903,546.60

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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.