Home / 1,109,478,077.57-1,666,872,081.09-711,416,537.64

Finding the Fourth Proportional to 1,109,478,077.57, 1,666,872,081.09 and 711,416,537.64

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Solution

The fourth proportional to 1,109,478,077.57, 1,666,872,081.09 and 711,416,537.64 is: 1,068,827,215.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,478,077.57 : 1,666,872,081.09 = 711,416,537.64 : x
  2. Step 2: Convert to fraction form
    1,109,478,077.57/1,666,872,081.09 = 711,416,537.64/x
  3. Step 3: Cross multiply
    1,109,478,077.57x = 1,666,872,081.09 × 711,416,537.64
  4. Step 4: Simplify right side
    1,109,478,077.57x = 1,185,840,364,617,829,120
  5. Step 5: Solve for x
    x = 1,185,840,364,617,829,120/1,109,478,077.57
  6. Step 6: Final answer
    x = 1,068,827,215.78

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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.