Home / 1,681,585,571.78-2,320,543,129.47-928,882,547.19

Finding the Fourth Proportional to 1,681,585,571.78, 2,320,543,129.47 and 928,882,547.19

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Solution

The fourth proportional to 1,681,585,571.78, 2,320,543,129.47 and 928,882,547.19 is: 1,281,833,080.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,681,585,571.78 : 2,320,543,129.47 = 928,882,547.19 : x
  2. Step 2: Convert to fraction form
    1,681,585,571.78/2,320,543,129.47 = 928,882,547.19/x
  3. Step 3: Cross multiply
    1,681,585,571.78x = 2,320,543,129.47 × 928,882,547.19
  4. Step 4: Simplify right side
    1,681,585,571.78x = 2,155,512,012,966,347,520
  5. Step 5: Solve for x
    x = 2,155,512,012,966,347,520/1,681,585,571.78
  6. Step 6: Final answer
    x = 1,281,833,080.13

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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.