Home / 31,439,549.47-43,386,133.86-17,688,480.79

Finding the Fourth Proportional to 31,439,549.47, 43,386,133.86 and 17,688,480.79

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Solution

The fourth proportional to 31,439,549.47, 43,386,133.86 and 17,688,480.79 is: 24,409,853.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,439,549.47 : 43,386,133.86 = 17,688,480.79 : x
  2. Step 2: Convert to fraction form
    31,439,549.47/43,386,133.86 = 17,688,480.79/x
  3. Step 3: Cross multiply
    31,439,549.47x = 43,386,133.86 × 17,688,480.79
  4. Step 4: Simplify right side
    31,439,549.47x = 767,434,795,118,047.88
  5. Step 5: Solve for x
    x = 767,434,795,118,047.88/31,439,549.47
  6. Step 6: Final answer
    x = 24,409,853.45

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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.