Home / 28,277,417,049.93-39,021,037,386.75-15,589,459,217.61

Finding the Fourth Proportional to 28,277,417,049.93, 39,021,037,386.75 and 15,589,459,217.61

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Solution

The fourth proportional to 28,277,417,049.93, 39,021,037,386.75 and 15,589,459,217.61 is: 21,512,462,396.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,277,417,049.93 : 39,021,037,386.75 = 15,589,459,217.61 : x
  2. Step 2: Convert to fraction form
    28,277,417,049.93/39,021,037,386.75 = 15,589,459,217.61/x
  3. Step 3: Cross multiply
    28,277,417,049.93x = 39,021,037,386.75 × 15,589,459,217.61
  4. Step 4: Simplify right side
    28,277,417,049.93x = 608,316,870,969,574,293,504
  5. Step 5: Solve for x
    x = 608,316,870,969,574,293,504/28,277,417,049.93
  6. Step 6: Final answer
    x = 21,512,462,396.95

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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.