Home / 28,050,513,815.28-38,709,746,386.56-15,190,175,943.12

Finding the Fourth Proportional to 28,050,513,815.28, 38,709,746,386.56 and 15,190,175,943.12

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Solution

The fourth proportional to 28,050,513,815.28, 38,709,746,386.56 and 15,190,175,943.12 is: 20,962,463,012.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,050,513,815.28 : 38,709,746,386.56 = 15,190,175,943.12 : x
  2. Step 2: Convert to fraction form
    28,050,513,815.28/38,709,746,386.56 = 15,190,175,943.12/x
  3. Step 3: Cross multiply
    28,050,513,815.28x = 38,709,746,386.56 × 15,190,175,943.12
  4. Step 4: Simplify right side
    28,050,513,815.28x = 588,007,858,325,400,059,904
  5. Step 5: Solve for x
    x = 588,007,858,325,400,059,904/28,050,513,815.28
  6. Step 6: Final answer
    x = 20,962,463,012.18

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Double scale
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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.