Home / 1,174,495,222.98-1,620,811,839.29-638,643,048.17

Finding the Fourth Proportional to 1,174,495,222.98, 1,620,811,839.29 and 638,643,048.17

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Solution

The fourth proportional to 1,174,495,222.98, 1,620,811,839.29 and 638,643,048.17 is: 881,331,991.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,174,495,222.98 : 1,620,811,839.29 = 638,643,048.17 : x
  2. Step 2: Convert to fraction form
    1,174,495,222.98/1,620,811,839.29 = 638,643,048.17/x
  3. Step 3: Cross multiply
    1,174,495,222.98x = 1,620,811,839.29 × 638,643,048.17
  4. Step 4: Simplify right side
    1,174,495,222.98x = 1,035,120,213,542,892,544
  5. Step 5: Solve for x
    x = 1,035,120,213,542,892,544/1,174,495,222.98
  6. Step 6: Final answer
    x = 881,331,991.22

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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.