Home / 556,116,643.80-834,174,965.70-427,374,077.40

Finding the Fourth Proportional to 556,116,643.80, 834,174,965.70 and 427,374,077.40

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Solution

The fourth proportional to 556,116,643.80, 834,174,965.70 and 427,374,077.40 is: 641,061,116.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,116,643.80 : 834,174,965.70 = 427,374,077.40 : x
  2. Step 2: Convert to fraction form
    556,116,643.80/834,174,965.70 = 427,374,077.40/x
  3. Step 3: Cross multiply
    556,116,643.80x = 834,174,965.70 × 427,374,077.40
  4. Step 4: Simplify right side
    556,116,643.80x = 356,504,756,356,214,144
  5. Step 5: Solve for x
    x = 356,504,756,356,214,144/556,116,643.80
  6. Step 6: Final answer
    x = 641,061,116.10

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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.