Home / 424,078,643.80-636,117,965.70-294,938,480.80

Finding the Fourth Proportional to 424,078,643.80, 636,117,965.70 and 294,938,480.80

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Solution

The fourth proportional to 424,078,643.80, 636,117,965.70 and 294,938,480.80 is: 442,407,721.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,078,643.80 : 636,117,965.70 = 294,938,480.80 : x
  2. Step 2: Convert to fraction form
    424,078,643.80/636,117,965.70 = 294,938,480.80/x
  3. Step 3: Cross multiply
    424,078,643.80x = 636,117,965.70 × 294,938,480.80
  4. Step 4: Simplify right side
    424,078,643.80x = 187,615,666,413,144,544
  5. Step 5: Solve for x
    x = 187,615,666,413,144,544/424,078,643.80
  6. Step 6: Final answer
    x = 442,407,721.20

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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.