Home / 486,515,030.40-729,701,686.80-141,432,674.40

Finding the Fourth Proportional to 486,515,030.40, 729,701,686.80 and 141,432,674.40

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Solution

The fourth proportional to 486,515,030.40, 729,701,686.80 and 141,432,674.40 is: 212,128,412.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,515,030.40 : 729,701,686.80 = 141,432,674.40 : x
  2. Step 2: Convert to fraction form
    486,515,030.40/729,701,686.80 = 141,432,674.40/x
  3. Step 3: Cross multiply
    486,515,030.40x = 729,701,686.80 × 141,432,674.40
  4. Step 4: Simplify right side
    486,515,030.40x = 103,203,661,078,315,168
  5. Step 5: Solve for x
    x = 103,203,661,078,315,168/486,515,030.40
  6. Step 6: Final answer
    x = 212,128,412.55

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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.