Home / 6,991,430.64-9,648,356.76-3,935,756.40

Finding the Fourth Proportional to 6,991,430.64, 9,648,356.76 and 3,935,756.40

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Solution

The fourth proportional to 6,991,430.64, 9,648,356.76 and 3,935,756.40 is: 5,431,446.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,991,430.64 : 9,648,356.76 = 3,935,756.40 : x
  2. Step 2: Convert to fraction form
    6,991,430.64/9,648,356.76 = 3,935,756.40/x
  3. Step 3: Cross multiply
    6,991,430.64x = 9,648,356.76 × 3,935,756.40
  4. Step 4: Simplify right side
    6,991,430.64x = 37,973,581,867,653.27
  5. Step 5: Solve for x
    x = 37,973,581,867,653.27/6,991,430.64
  6. Step 6: Final answer
    x = 5,431,446.56

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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.