Home / 21,653,409.69-29,871,688.86-19,175,155.96

Finding the Fourth Proportional to 21,653,409.69, 29,871,688.86 and 19,175,155.96

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Solution

The fourth proportional to 21,653,409.69, 29,871,688.86 and 19,175,155.96 is: 26,452,845.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,653,409.69 : 29,871,688.86 = 19,175,155.96 : x
  2. Step 2: Convert to fraction form
    21,653,409.69/29,871,688.86 = 19,175,155.96/x
  3. Step 3: Cross multiply
    21,653,409.69x = 29,871,688.86 × 19,175,155.96
  4. Step 4: Simplify right side
    21,653,409.69x = 572,794,292,679,094.62
  5. Step 5: Solve for x
    x = 572,794,292,679,094.62/21,653,409.69
  6. Step 6: Final answer
    x = 26,452,845.11

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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.