Home / 407,280,123.12-610,977,573.48-130,838,642.16

Finding the Fourth Proportional to 407,280,123.12, 610,977,573.48 and 130,838,642.16

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Solution

The fourth proportional to 407,280,123.12, 610,977,573.48 and 130,838,642.16 is: 196,276,399.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,280,123.12 : 610,977,573.48 = 130,838,642.16 : x
  2. Step 2: Convert to fraction form
    407,280,123.12/610,977,573.48 = 130,838,642.16/x
  3. Step 3: Cross multiply
    407,280,123.12x = 610,977,573.48 × 130,838,642.16
  4. Step 4: Simplify right side
    407,280,123.12x = 79,939,476,104,334,832
  5. Step 5: Solve for x
    x = 79,939,476,104,334,832/407,280,123.12
  6. Step 6: Final answer
    x = 196,276,399.38

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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.