Home / 1,077,051,212.40-1,615,576,818.60-421,784,459.40

Finding the Fourth Proportional to 1,077,051,212.40, 1,615,576,818.60 and 421,784,459.40

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Solution

The fourth proportional to 1,077,051,212.40, 1,615,576,818.60 and 421,784,459.40 is: 632,676,689.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,077,051,212.40 : 1,615,576,818.60 = 421,784,459.40 : x
  2. Step 2: Convert to fraction form
    1,077,051,212.40/1,615,576,818.60 = 421,784,459.40/x
  3. Step 3: Cross multiply
    1,077,051,212.40x = 1,615,576,818.60 × 421,784,459.40
  4. Step 4: Simplify right side
    1,077,051,212.40x = 681,425,195,052,372,736
  5. Step 5: Solve for x
    x = 681,425,195,052,372,736/1,077,051,212.40
  6. Step 6: Final answer
    x = 632,676,689.10

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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.