Home / 78,088,200.64-107,768,166.72-43,291,806.40

Finding the Fourth Proportional to 78,088,200.64, 107,768,166.72 and 43,291,806.40

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Solution

The fourth proportional to 78,088,200.64, 107,768,166.72 and 43,291,806.40 is: 59,746,268.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,088,200.64 : 107,768,166.72 = 43,291,806.40 : x
  2. Step 2: Convert to fraction form
    78,088,200.64/107,768,166.72 = 43,291,806.40/x
  3. Step 3: Cross multiply
    78,088,200.64x = 107,768,166.72 × 43,291,806.40
  4. Step 4: Simplify right side
    78,088,200.64x = 4,665,478,609,725,163
  5. Step 5: Solve for x
    x = 4,665,478,609,725,163/78,088,200.64
  6. Step 6: Final answer
    x = 59,746,268.60

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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.