Home / 11,420,374.56-15,742,681.73-7,001,920.12

Finding the Fourth Proportional to 11,420,374.56, 15,742,681.73 and 7,001,920.12

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Solution

The fourth proportional to 11,420,374.56, 15,742,681.73 and 7,001,920.12 is: 9,651,960.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,420,374.56 : 15,742,681.73 = 7,001,920.12 : x
  2. Step 2: Convert to fraction form
    11,420,374.56/15,742,681.73 = 7,001,920.12/x
  3. Step 3: Cross multiply
    11,420,374.56x = 15,742,681.73 × 7,001,920.12
  4. Step 4: Simplify right side
    11,420,374.56x = 110,228,999,948,043.41
  5. Step 5: Solve for x
    x = 110,228,999,948,043.41/11,420,374.56
  6. Step 6: Final answer
    x = 9,651,960.13

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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.