Home / 1,098,242,277.98-1,515,603,940.18-646,151,802.90

Finding the Fourth Proportional to 1,098,242,277.98, 1,515,603,940.18 and 646,151,802.90

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Solution

The fourth proportional to 1,098,242,277.98, 1,515,603,940.18 and 646,151,802.90 is: 891,706,901.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,242,277.98 : 1,515,603,940.18 = 646,151,802.90 : x
  2. Step 2: Convert to fraction form
    1,098,242,277.98/1,515,603,940.18 = 646,151,802.90/x
  3. Step 3: Cross multiply
    1,098,242,277.98x = 1,515,603,940.18 × 646,151,802.90
  4. Step 4: Simplify right side
    1,098,242,277.98x = 979,310,218,429,650,816
  5. Step 5: Solve for x
    x = 979,310,218,429,650,816/1,098,242,277.98
  6. Step 6: Final answer
    x = 891,706,901.17

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Double scale
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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.