Home / 72,953,971.20-109,461,100.80-31,992,215.04

Finding the Fourth Proportional to 72,953,971.20, 109,461,100.80 and 31,992,215.04

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Solution

The fourth proportional to 72,953,971.20, 109,461,100.80 and 31,992,215.04 is: 48,001,541.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,953,971.20 : 109,461,100.80 = 31,992,215.04 : x
  2. Step 2: Convert to fraction form
    72,953,971.20/109,461,100.80 = 31,992,215.04/x
  3. Step 3: Cross multiply
    72,953,971.20x = 109,461,100.80 × 31,992,215.04
  4. Step 4: Simplify right side
    72,953,971.20x = 3,501,903,075,308,716
  5. Step 5: Solve for x
    x = 3,501,903,075,308,716/72,953,971.20
  6. Step 6: Final answer
    x = 48,001,541.49

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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.