Home / 260,814,282.90-391,221,424.35-139,881,930.90

Finding the Fourth Proportional to 260,814,282.90, 391,221,424.35 and 139,881,930.90

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Solution

The fourth proportional to 260,814,282.90, 391,221,424.35 and 139,881,930.90 is: 209,822,896.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,814,282.90 : 391,221,424.35 = 139,881,930.90 : x
  2. Step 2: Convert to fraction form
    260,814,282.90/391,221,424.35 = 139,881,930.90/x
  3. Step 3: Cross multiply
    260,814,282.90x = 391,221,424.35 × 139,881,930.90
  4. Step 4: Simplify right side
    260,814,282.90x = 54,724,808,247,526,280
  5. Step 5: Solve for x
    x = 54,724,808,247,526,280/260,814,282.90
  6. Step 6: Final answer
    x = 209,822,896.35

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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.