Home / 249,839,590.86-344,789,409.78-138,330,433.80

Finding the Fourth Proportional to 249,839,590.86, 344,789,409.78 and 138,330,433.80

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Solution

The fourth proportional to 249,839,590.86, 344,789,409.78 and 138,330,433.80 is: 190,901,964.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,839,590.86 : 344,789,409.78 = 138,330,433.80 : x
  2. Step 2: Convert to fraction form
    249,839,590.86/344,789,409.78 = 138,330,433.80/x
  3. Step 3: Cross multiply
    249,839,590.86x = 344,789,409.78 × 138,330,433.80
  4. Step 4: Simplify right side
    249,839,590.86x = 47,694,868,624,513,360
  5. Step 5: Solve for x
    x = 47,694,868,624,513,360/249,839,590.86
  6. Step 6: Final answer
    x = 190,901,964.18

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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.