Home / 1,121,738,876-1,547,971,130.40-626,705,302.40

Finding the Fourth Proportional to 1,121,738,876, 1,547,971,130.40 and 626,705,302.40

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Solution

The fourth proportional to 1,121,738,876, 1,547,971,130.40 and 626,705,302.40 is: 864,837,384.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,738,876 : 1,547,971,130.40 = 626,705,302.40 : x
  2. Step 2: Convert to fraction form
    1,121,738,876/1,547,971,130.40 = 626,705,302.40/x
  3. Step 3: Cross multiply
    1,121,738,876x = 1,547,971,130.40 × 626,705,302.40
  4. Step 4: Simplify right side
    1,121,738,876x = 970,121,715,383,801,856
  5. Step 5: Solve for x
    x = 970,121,715,383,801,856/1,121,738,876
  6. Step 6: Final answer
    x = 864,837,384.30

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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.