Home / 2,139,955,357.07-2,953,162,334.18-1,187,353,343.29

Finding the Fourth Proportional to 2,139,955,357.07, 2,953,162,334.18 and 1,187,353,343.29

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Solution

The fourth proportional to 2,139,955,357.07, 2,953,162,334.18 and 1,187,353,343.29 is: 1,638,560,897.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,139,955,357.07 : 2,953,162,334.18 = 1,187,353,343.29 : x
  2. Step 2: Convert to fraction form
    2,139,955,357.07/2,953,162,334.18 = 1,187,353,343.29/x
  3. Step 3: Cross multiply
    2,139,955,357.07x = 2,953,162,334.18 × 1,187,353,343.29
  4. Step 4: Simplify right side
    2,139,955,357.07x = 3,506,447,170,754,322,944
  5. Step 5: Solve for x
    x = 3,506,447,170,754,322,944/2,139,955,357.07
  6. Step 6: Final answer
    x = 1,638,560,897.62

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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.