Home / 86,890,434.40-130,335,651.60-56,657,346.40

Finding the Fourth Proportional to 86,890,434.40, 130,335,651.60 and 56,657,346.40

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Solution

The fourth proportional to 86,890,434.40, 130,335,651.60 and 56,657,346.40 is: 84,986,019.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,890,434.40 : 130,335,651.60 = 56,657,346.40 : x
  2. Step 2: Convert to fraction form
    86,890,434.40/130,335,651.60 = 56,657,346.40/x
  3. Step 3: Cross multiply
    86,890,434.40x = 130,335,651.60 × 56,657,346.40
  4. Step 4: Simplify right side
    86,890,434.40x = 7,384,472,160,970,914
  5. Step 5: Solve for x
    x = 7,384,472,160,970,914/86,890,434.40
  6. Step 6: Final answer
    x = 84,986,019.60

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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.