Home / 928,147,333,445.05-1,280,843,381,747.40-516,606,980,280.65

Finding the Fourth Proportional to 928,147,333,445.05, 1,280,843,381,747.40 and 516,606,980,280.65

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Solution

The fourth proportional to 928,147,333,445.05, 1,280,843,381,747.40 and 516,606,980,280.65 is: 712,917,667,070.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,147,333,445.05 : 1,280,843,381,747.40 = 516,606,980,280.65 : x
  2. Step 2: Convert to fraction form
    928,147,333,445.05/1,280,843,381,747.40 = 516,606,980,280.65/x
  3. Step 3: Cross multiply
    928,147,333,445.05x = 1,280,843,381,747.40 × 516,606,980,280.65
  4. Step 4: Simplify right side
    928,147,333,445.05x = 661,692,631,656,980,163,854,336
  5. Step 5: Solve for x
    x = 661,692,631,656,980,163,854,336/928,147,333,445.05
  6. Step 6: Final answer
    x = 712,917,667,070.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.