Home / 787,680,071.60-1,181,520,107.40-379,533,383.60

Finding the Fourth Proportional to 787,680,071.60, 1,181,520,107.40 and 379,533,383.60

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Solution

The fourth proportional to 787,680,071.60, 1,181,520,107.40 and 379,533,383.60 is: 569,300,075.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,680,071.60 : 1,181,520,107.40 = 379,533,383.60 : x
  2. Step 2: Convert to fraction form
    787,680,071.60/1,181,520,107.40 = 379,533,383.60/x
  3. Step 3: Cross multiply
    787,680,071.60x = 1,181,520,107.40 × 379,533,383.60
  4. Step 4: Simplify right side
    787,680,071.60x = 448,426,324,152,957,440
  5. Step 5: Solve for x
    x = 448,426,324,152,957,440/787,680,071.60
  6. Step 6: Final answer
    x = 569,300,075.40

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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.