Home / 1,265,504,076.30-1,898,256,114.45-345,473,417.10

Finding the Fourth Proportional to 1,265,504,076.30, 1,898,256,114.45 and 345,473,417.10

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Solution

The fourth proportional to 1,265,504,076.30, 1,898,256,114.45 and 345,473,417.10 is: 518,210,125.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,265,504,076.30 : 1,898,256,114.45 = 345,473,417.10 : x
  2. Step 2: Convert to fraction form
    1,265,504,076.30/1,898,256,114.45 = 345,473,417.10/x
  3. Step 3: Cross multiply
    1,265,504,076.30x = 1,898,256,114.45 × 345,473,417.10
  4. Step 4: Simplify right side
    1,265,504,076.30x = 655,797,026,390,010,240
  5. Step 5: Solve for x
    x = 655,797,026,390,010,240/1,265,504,076.30
  6. Step 6: Final answer
    x = 518,210,125.65

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.