Home / 21,516,578,743.68-29,692,981,796.85-11,871,308,227.67

Finding the Fourth Proportional to 21,516,578,743.68, 29,692,981,796.85 and 11,871,308,227.67

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Solution

The fourth proportional to 21,516,578,743.68, 29,692,981,796.85 and 11,871,308,227.67 is: 16,382,462,254.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,516,578,743.68 : 29,692,981,796.85 = 11,871,308,227.67 : x
  2. Step 2: Convert to fraction form
    21,516,578,743.68/29,692,981,796.85 = 11,871,308,227.67/x
  3. Step 3: Cross multiply
    21,516,578,743.68x = 29,692,981,796.85 × 11,871,308,227.67
  4. Step 4: Simplify right side
    21,516,578,743.68x = 352,494,539,108,971,249,664
  5. Step 5: Solve for x
    x = 352,494,539,108,971,249,664/21,516,578,743.68
  6. Step 6: Final answer
    x = 16,382,462,254.25

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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.