Home / 145,224,795.99-200,417,323.80-81,665,139.02

Finding the Fourth Proportional to 145,224,795.99, 200,417,323.80 and 81,665,139.02

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Solution

The fourth proportional to 145,224,795.99, 200,417,323.80 and 81,665,139.02 is: 112,701,887.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,224,795.99 : 200,417,323.80 = 81,665,139.02 : x
  2. Step 2: Convert to fraction form
    145,224,795.99/200,417,323.80 = 81,665,139.02/x
  3. Step 3: Cross multiply
    145,224,795.99x = 200,417,323.80 × 81,665,139.02
  4. Step 4: Simplify right side
    145,224,795.99x = 16,367,108,609,551,510
  5. Step 5: Solve for x
    x = 16,367,108,609,551,510/145,224,795.99
  6. Step 6: Final answer
    x = 112,701,887.43

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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.