Home / 1,370,211,897.96-1,890,894,189.78-743,680,254.60

Finding the Fourth Proportional to 1,370,211,897.96, 1,890,894,189.78 and 743,680,254.60

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Solution

The fourth proportional to 1,370,211,897.96, 1,890,894,189.78 and 743,680,254.60 is: 1,026,279,712.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,370,211,897.96 : 1,890,894,189.78 = 743,680,254.60 : x
  2. Step 2: Convert to fraction form
    1,370,211,897.96/1,890,894,189.78 = 743,680,254.60/x
  3. Step 3: Cross multiply
    1,370,211,897.96x = 1,890,894,189.78 × 743,680,254.60
  4. Step 4: Simplify right side
    1,370,211,897.96x = 1,406,220,672,477,251,072
  5. Step 5: Solve for x
    x = 1,406,220,672,477,251,072/1,370,211,897.96
  6. Step 6: Final answer
    x = 1,026,279,712.34

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Double scale
Find fourth proportional to 1,370,211,898.96, 1,890,894,191.16 and 743,680,255.60
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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.