Home / 72,724,779.54-100,362,325.25-39,687,157.46

Finding the Fourth Proportional to 72,724,779.54, 100,362,325.25 and 39,687,157.46

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Solution

The fourth proportional to 72,724,779.54, 100,362,325.25 and 39,687,157.46 is: 54,769,439.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,724,779.54 : 100,362,325.25 = 39,687,157.46 : x
  2. Step 2: Convert to fraction form
    72,724,779.54/100,362,325.25 = 39,687,157.46/x
  3. Step 3: Cross multiply
    72,724,779.54x = 100,362,325.25 × 39,687,157.46
  4. Step 4: Simplify right side
    72,724,779.54x = 3,983,095,405,598,607.50
  5. Step 5: Solve for x
    x = 3,983,095,405,598,607.50/72,724,779.54
  6. Step 6: Final answer
    x = 54,769,439.40

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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.