Home / 386,688,009.20-580,032,013.80-233,805,628.40

Finding the Fourth Proportional to 386,688,009.20, 580,032,013.80 and 233,805,628.40

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Solution

The fourth proportional to 386,688,009.20, 580,032,013.80 and 233,805,628.40 is: 350,708,442.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,688,009.20 : 580,032,013.80 = 233,805,628.40 : x
  2. Step 2: Convert to fraction form
    386,688,009.20/580,032,013.80 = 233,805,628.40/x
  3. Step 3: Cross multiply
    386,688,009.20x = 580,032,013.80 × 233,805,628.40
  4. Step 4: Simplify right side
    386,688,009.20x = 135,614,749,478,626,464
  5. Step 5: Solve for x
    x = 135,614,749,478,626,464/386,688,009.20
  6. Step 6: Final answer
    x = 350,708,442.60

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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.