Home / 68,852,834.05-103,292,881.04-19,669,111.87

Finding the Fourth Proportional to 68,852,834.05, 103,292,881.04 and 19,669,111.87

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Solution

The fourth proportional to 68,852,834.05, 103,292,881.04 and 19,669,111.87 is: 29,507,561.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,852,834.05 : 103,292,881.04 = 19,669,111.87 : x
  2. Step 2: Convert to fraction form
    68,852,834.05/103,292,881.04 = 19,669,111.87/x
  3. Step 3: Cross multiply
    68,852,834.05x = 103,292,881.04 × 19,669,111.87
  4. Step 4: Simplify right side
    68,852,834.05x = 2,031,679,232,216,980.25
  5. Step 5: Solve for x
    x = 2,031,679,232,216,980.25/68,852,834.05
  6. Step 6: Final answer
    x = 29,507,561.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.