Home / 1,251,597,071.60-1,877,386,276.20-378,196,751.60

Finding the Fourth Proportional to 1,251,597,071.60, 1,877,386,276.20 and 378,196,751.60

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Solution

The fourth proportional to 1,251,597,071.60, 1,877,386,276.20 and 378,196,751.60 is: 567,292,307.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,251,597,071.60 : 1,877,386,276.20 = 378,196,751.60 : x
  2. Step 2: Convert to fraction form
    1,251,597,071.60/1,877,386,276.20 = 378,196,751.60/x
  3. Step 3: Cross multiply
    1,251,597,071.60x = 1,877,386,276.20 × 378,196,751.60
  4. Step 4: Simplify right side
    1,251,597,071.60x = 710,021,391,157,260,416
  5. Step 5: Solve for x
    x = 710,021,391,157,260,416/1,251,597,071.60
  6. Step 6: Final answer
    x = 567,292,307.78

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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.