Home / 1,370,184,450.17-1,890,856,365.83-743,652,878.09

Finding the Fourth Proportional to 1,370,184,450.17, 1,890,856,365.83 and 743,652,878.09

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Solution

The fourth proportional to 1,370,184,450.17, 1,890,856,365.83 and 743,652,878.09 is: 1,026,241,962.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,370,184,450.17 : 1,890,856,365.83 = 743,652,878.09 : x
  2. Step 2: Convert to fraction form
    1,370,184,450.17/1,890,856,365.83 = 743,652,878.09/x
  3. Step 3: Cross multiply
    1,370,184,450.17x = 1,890,856,365.83 × 743,652,878.09
  4. Step 4: Simplify right side
    1,370,184,450.17x = 1,406,140,778,500,559,360
  5. Step 5: Solve for x
    x = 1,406,140,778,500,559,360/1,370,184,450.17
  6. Step 6: Final answer
    x = 1,026,241,962.04

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Double scale
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1.5x scale

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.