Home / 916,656,615.64-1,265,016,684.90-514,841,174.38

Finding the Fourth Proportional to 916,656,615.64, 1,265,016,684.90 and 514,841,174.38

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Solution

The fourth proportional to 916,656,615.64, 1,265,016,684.90 and 514,841,174.38 is: 710,497,982.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,656,615.64 : 1,265,016,684.90 = 514,841,174.38 : x
  2. Step 2: Convert to fraction form
    916,656,615.64/1,265,016,684.90 = 514,841,174.38/x
  3. Step 3: Cross multiply
    916,656,615.64x = 1,265,016,684.90 × 514,841,174.38
  4. Step 4: Simplify right side
    916,656,615.64x = 651,282,675,664,210,432
  5. Step 5: Solve for x
    x = 651,282,675,664,210,432/916,656,615.64
  6. Step 6: Final answer
    x = 710,497,982.07

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1.5x scale

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.