Home / 84,009,762.40-125,865,344.40-72,065,826.40

Finding the Fourth Proportional to 84,009,762.40, 125,865,344.40 and 72,065,826.40

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Solution

The fourth proportional to 84,009,762.40, 125,865,344.40 and 72,065,826.40 is: 107,970,666.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,009,762.40 : 125,865,344.40 = 72,065,826.40 : x
  2. Step 2: Convert to fraction form
    84,009,762.40/125,865,344.40 = 72,065,826.40/x
  3. Step 3: Cross multiply
    84,009,762.40x = 125,865,344.40 × 72,065,826.40
  4. Step 4: Simplify right side
    84,009,762.40x = 9,070,590,059,306,614
  5. Step 5: Solve for x
    x = 9,070,590,059,306,614/84,009,762.40
  6. Step 6: Final answer
    x = 107,970,666.74

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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.