Home / 1,127,516,331.51-1,556,007,921.41-651,197,851.92

Finding the Fourth Proportional to 1,127,516,331.51, 1,556,007,921.41 and 651,197,851.92

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Solution

The fourth proportional to 1,127,516,331.51, 1,556,007,921.41 and 651,197,851.92 is: 898,673,471.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,516,331.51 : 1,556,007,921.41 = 651,197,851.92 : x
  2. Step 2: Convert to fraction form
    1,127,516,331.51/1,556,007,921.41 = 651,197,851.92/x
  3. Step 3: Cross multiply
    1,127,516,331.51x = 1,556,007,921.41 × 651,197,851.92
  4. Step 4: Simplify right side
    1,127,516,331.51x = 1,013,269,015,989,440,128
  5. Step 5: Solve for x
    x = 1,013,269,015,989,440,128/1,127,516,331.51
  6. Step 6: Final answer
    x = 898,673,471.66

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Double scale
Find fourth proportional to 1,127,516,332.51, 1,556,007,922.79 and 651,197,852.92
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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.