Home / 817,890,614.40-1,226,804,428.80-272,632,148.40

Finding the Fourth Proportional to 817,890,614.40, 1,226,804,428.80 and 272,632,148.40

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Solution

The fourth proportional to 817,890,614.40, 1,226,804,428.80 and 272,632,148.40 is: 408,937,724.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,890,614.40 : 1,226,804,428.80 = 272,632,148.40 : x
  2. Step 2: Convert to fraction form
    817,890,614.40/1,226,804,428.80 = 272,632,148.40/x
  3. Step 3: Cross multiply
    817,890,614.40x = 1,226,804,428.80 × 272,632,148.40
  4. Step 4: Simplify right side
    817,890,614.40x = 334,466,327,090,378,816
  5. Step 5: Solve for x
    x = 334,466,327,090,378,816/817,890,614.40
  6. Step 6: Final answer
    x = 408,937,724.93

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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.