Home / 285,995,343.71-428,418,767.69-242,088,081.95

Finding the Fourth Proportional to 285,995,343.71, 428,418,767.69 and 242,088,081.95

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Solution

The fourth proportional to 285,995,343.71, 428,418,767.69 and 242,088,081.95 is: 362,646,036.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,995,343.71 : 428,418,767.69 = 242,088,081.95 : x
  2. Step 2: Convert to fraction form
    285,995,343.71/428,418,767.69 = 242,088,081.95/x
  3. Step 3: Cross multiply
    285,995,343.71x = 428,418,767.69 × 242,088,081.95
  4. Step 4: Simplify right side
    285,995,343.71x = 103,715,077,742,223,168
  5. Step 5: Solve for x
    x = 103,715,077,742,223,168/285,995,343.71
  6. Step 6: Final answer
    x = 362,646,036.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.