Home / 501,810,729.17-692,458,206.80-290,131,141.02

Finding the Fourth Proportional to 501,810,729.17, 692,458,206.80 and 290,131,141.02

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Solution

The fourth proportional to 501,810,729.17, 692,458,206.80 and 290,131,141.02 is: 400,357,501.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,810,729.17 : 692,458,206.80 = 290,131,141.02 : x
  2. Step 2: Convert to fraction form
    501,810,729.17/692,458,206.80 = 290,131,141.02/x
  3. Step 3: Cross multiply
    501,810,729.17x = 692,458,206.80 × 290,131,141.02
  4. Step 4: Simplify right side
    501,810,729.17x = 200,903,689,649,028,800
  5. Step 5: Solve for x
    x = 200,903,689,649,028,800/501,810,729.17
  6. Step 6: Final answer
    x = 400,357,501.29

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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.