Home / 1,258,117,874.42-1,886,766,079.68-417,534,821.43

Finding the Fourth Proportional to 1,258,117,874.42, 1,886,766,079.68 and 417,534,821.43

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Solution

The fourth proportional to 1,258,117,874.42, 1,886,766,079.68 and 417,534,821.43 is: 626,165,921.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,117,874.42 : 1,886,766,079.68 = 417,534,821.43 : x
  2. Step 2: Convert to fraction form
    1,258,117,874.42/1,886,766,079.68 = 417,534,821.43/x
  3. Step 3: Cross multiply
    1,258,117,874.42x = 1,886,766,079.68 × 417,534,821.43
  4. Step 4: Simplify right side
    1,258,117,874.42x = 787,790,538,159,369,984
  5. Step 5: Solve for x
    x = 787,790,538,159,369,984/1,258,117,874.42
  6. Step 6: Final answer
    x = 626,165,921.48

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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.