Home / 210,448,530.90-315,665,681.31-74,130,352.02

Finding the Fourth Proportional to 210,448,530.90, 315,665,681.31 and 74,130,352.02

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Solution

The fourth proportional to 210,448,530.90, 315,665,681.31 and 74,130,352.02 is: 111,193,021.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,448,530.90 : 315,665,681.31 = 74,130,352.02 : x
  2. Step 2: Convert to fraction form
    210,448,530.90/315,665,681.31 = 74,130,352.02/x
  3. Step 3: Cross multiply
    210,448,530.90x = 315,665,681.31 × 74,130,352.02
  4. Step 4: Simplify right side
    210,448,530.90x = 23,400,408,076,143,432
  5. Step 5: Solve for x
    x = 23,400,408,076,143,432/210,448,530.90
  6. Step 6: Final answer
    x = 111,193,021.76

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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.