Home / 1,241,567,999.20-1,861,680,152.40-514,630,194.40

Finding the Fourth Proportional to 1,241,567,999.20, 1,861,680,152.40 and 514,630,194.40

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Solution

The fourth proportional to 1,241,567,999.20, 1,861,680,152.40 and 514,630,194.40 is: 771,666,811.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,241,567,999.20 : 1,861,680,152.40 = 514,630,194.40 : x
  2. Step 2: Convert to fraction form
    1,241,567,999.20/1,861,680,152.40 = 514,630,194.40/x
  3. Step 3: Cross multiply
    1,241,567,999.20x = 1,861,680,152.40 × 514,630,194.40
  4. Step 4: Simplify right side
    1,241,567,999.20x = 958,076,818,740,233,600
  5. Step 5: Solve for x
    x = 958,076,818,740,233,600/1,241,567,999.20
  6. Step 6: Final answer
    x = 771,666,811.13

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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.