Home / 13,162,120,718.54-18,163,761,798.78-7,140,626,122.52

Finding the Fourth Proportional to 13,162,120,718.54, 18,163,761,798.78 and 7,140,626,122.52

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Solution

The fourth proportional to 13,162,120,718.54, 18,163,761,798.78 and 7,140,626,122.52 is: 9,854,083,149.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,162,120,718.54 : 18,163,761,798.78 = 7,140,626,122.52 : x
  2. Step 2: Convert to fraction form
    13,162,120,718.54/18,163,761,798.78 = 7,140,626,122.52/x
  3. Step 3: Cross multiply
    13,162,120,718.54x = 18,163,761,798.78 × 7,140,626,122.52
  4. Step 4: Simplify right side
    13,162,120,718.54x = 129,700,631,983,599,337,472
  5. Step 5: Solve for x
    x = 129,700,631,983,599,337,472/13,162,120,718.54
  6. Step 6: Final answer
    x = 9,854,083,149.45

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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.