Home / 72,886,890.02-109,209,259.80-51,276,087.72

Finding the Fourth Proportional to 72,886,890.02, 109,209,259.80 and 51,276,087.72

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Solution

The fourth proportional to 72,886,890.02, 109,209,259.80 and 51,276,087.72 is: 76,828,954.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,886,890.02 : 109,209,259.80 = 51,276,087.72 : x
  2. Step 2: Convert to fraction form
    72,886,890.02/109,209,259.80 = 51,276,087.72/x
  3. Step 3: Cross multiply
    72,886,890.02x = 109,209,259.80 × 51,276,087.72
  4. Step 4: Simplify right side
    72,886,890.02x = 5,599,823,585,341,069
  5. Step 5: Solve for x
    x = 5,599,823,585,341,069/72,886,890.02
  6. Step 6: Final answer
    x = 76,828,954.89

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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.