Home / 148,961,880.18-205,564,172.40-86,240,622.78

Finding the Fourth Proportional to 148,961,880.18, 205,564,172.40 and 86,240,622.78

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Solution

The fourth proportional to 148,961,880.18, 205,564,172.40 and 86,240,622.78 is: 119,010,193.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,961,880.18 : 205,564,172.40 = 86,240,622.78 : x
  2. Step 2: Convert to fraction form
    148,961,880.18/205,564,172.40 = 86,240,622.78/x
  3. Step 3: Cross multiply
    148,961,880.18x = 205,564,172.40 × 86,240,622.78
  4. Step 4: Simplify right side
    148,961,880.18x = 17,727,982,249,031,288
  5. Step 5: Solve for x
    x = 17,727,982,249,031,288/148,961,880.18
  6. Step 6: Final answer
    x = 119,010,193.93

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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.