Home / 7,105,044,672.12-9,805,077,760.14-3,889,901,036.28

Finding the Fourth Proportional to 7,105,044,672.12, 9,805,077,760.14 and 3,889,901,036.28

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Solution

The fourth proportional to 7,105,044,672.12, 9,805,077,760.14 and 3,889,901,036.28 is: 5,368,126,999.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,105,044,672.12 : 9,805,077,760.14 = 3,889,901,036.28 : x
  2. Step 2: Convert to fraction form
    7,105,044,672.12/9,805,077,760.14 = 3,889,901,036.28/x
  3. Step 3: Cross multiply
    7,105,044,672.12x = 9,805,077,760.14 × 3,889,901,036.28
  4. Step 4: Simplify right side
    7,105,044,672.12x = 38,140,782,139,974,565,888
  5. Step 5: Solve for x
    x = 38,140,782,139,974,565,888/7,105,044,672.12
  6. Step 6: Final answer
    x = 5,368,126,999.91

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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.