Home / 1,306,981,492.98-1,961,051,178.14-685,048,920.00

Finding the Fourth Proportional to 1,306,981,492.98, 1,961,051,178.14 and 685,048,920.00

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Solution

The fourth proportional to 1,306,981,492.98, 1,961,051,178.14 and 685,048,920.00 is: 1,027,876,828.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,306,981,492.98 : 1,961,051,178.14 = 685,048,920.00 : x
  2. Step 2: Convert to fraction form
    1,306,981,492.98/1,961,051,178.14 = 685,048,920.00/x
  3. Step 3: Cross multiply
    1,306,981,492.98x = 1,961,051,178.14 × 685,048,920.00
  4. Step 4: Simplify right side
    1,306,981,492.98x = 1,343,415,991,636,304,128
  5. Step 5: Solve for x
    x = 1,343,415,991,636,304,128/1,306,981,492.98
  6. Step 6: Final answer
    x = 1,027,876,828.29

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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.