Home / 27,759,730-38,309,624.70-15,369,823.72

Finding the Fourth Proportional to 27,759,730, 38,309,624.70 and 15,369,823.72

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Solution

The fourth proportional to 27,759,730, 38,309,624.70 and 15,369,823.72 is: 21,211,019.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,759,730 : 38,309,624.70 = 15,369,823.72 : x
  2. Step 2: Convert to fraction form
    27,759,730/38,309,624.70 = 15,369,823.72/x
  3. Step 3: Cross multiply
    27,759,730x = 38,309,624.70 × 15,369,823.72
  4. Step 4: Simplify right side
    27,759,730x = 588,812,178,418,358
  5. Step 5: Solve for x
    x = 588,812,178,418,358/27,759,730
  6. Step 6: Final answer
    x = 21,211,019.65

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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.