Home / 142,709,931,106.64-196,944,882,743.76-81,754,079,169.92

Finding the Fourth Proportional to 142,709,931,106.64, 196,944,882,743.76 and 81,754,079,169.92

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Solution

The fourth proportional to 142,709,931,106.64, 196,944,882,743.76 and 81,754,079,169.92 is: 112,823,595,464.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,709,931,106.64 : 196,944,882,743.76 = 81,754,079,169.92 : x
  2. Step 2: Convert to fraction form
    142,709,931,106.64/196,944,882,743.76 = 81,754,079,169.92/x
  3. Step 3: Cross multiply
    142,709,931,106.64x = 196,944,882,743.76 × 81,754,079,169.92
  4. Step 4: Simplify right side
    142,709,931,106.64x = 16,101,047,535,943,966,261,248
  5. Step 5: Solve for x
    x = 16,101,047,535,943,966,261,248/142,709,931,106.64
  6. Step 6: Final answer
    x = 112,823,595,464.51

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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.