Home / 13,428,742,987.64-18,531,683,174.22-7,407,113,350.52

Finding the Fourth Proportional to 13,428,742,987.64, 18,531,683,174.22 and 7,407,113,350.52

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Solution

The fourth proportional to 13,428,742,987.64, 18,531,683,174.22 and 7,407,113,350.52 is: 10,221,826,270.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,428,742,987.64 : 18,531,683,174.22 = 7,407,113,350.52 : x
  2. Step 2: Convert to fraction form
    13,428,742,987.64/18,531,683,174.22 = 7,407,113,350.52/x
  3. Step 3: Cross multiply
    13,428,742,987.64x = 18,531,683,174.22 × 7,407,113,350.52
  4. Step 4: Simplify right side
    13,428,742,987.64x = 137,266,277,847,371,825,152
  5. Step 5: Solve for x
    x = 137,266,277,847,371,825,152/13,428,742,987.64
  6. Step 6: Final answer
    x = 10,221,826,270.24

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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.