Home / 1,107,622,851.71-1,528,990,179.53-690,141,402.54

Finding the Fourth Proportional to 1,107,622,851.71, 1,528,990,179.53 and 690,141,402.54

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Solution

The fourth proportional to 1,107,622,851.71, 1,528,990,179.53 and 690,141,402.54 is: 952,688,386.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,622,851.71 : 1,528,990,179.53 = 690,141,402.54 : x
  2. Step 2: Convert to fraction form
    1,107,622,851.71/1,528,990,179.53 = 690,141,402.54/x
  3. Step 3: Cross multiply
    1,107,622,851.71x = 1,528,990,179.53 × 690,141,402.54
  4. Step 4: Simplify right side
    1,107,622,851.71x = 1,055,219,426,967,269,888
  5. Step 5: Solve for x
    x = 1,055,219,426,967,269,888/1,107,622,851.71
  6. Step 6: Final answer
    x = 952,688,386.07

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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.