Home / 72,259,289.74-99,719,303.07-40,897,338.22

Finding the Fourth Proportional to 72,259,289.74, 99,719,303.07 and 40,897,338.22

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Solution

The fourth proportional to 72,259,289.74, 99,719,303.07 and 40,897,338.22 is: 56,439,166.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,259,289.74 : 99,719,303.07 = 40,897,338.22 : x
  2. Step 2: Convert to fraction form
    72,259,289.74/99,719,303.07 = 40,897,338.22/x
  3. Step 3: Cross multiply
    72,259,289.74x = 99,719,303.07 × 40,897,338.22
  4. Step 4: Simplify right side
    72,259,289.74x = 4,078,254,064,716,474
  5. Step 5: Solve for x
    x = 4,078,254,064,716,474/72,259,289.74
  6. Step 6: Final answer
    x = 56,439,166.22

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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.