Home / 42,009,865.30-63,014,797.95-13,258,907.20

Finding the Fourth Proportional to 42,009,865.30, 63,014,797.95 and 13,258,907.20

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Solution

The fourth proportional to 42,009,865.30, 63,014,797.95 and 13,258,907.20 is: 19,888,360.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,009,865.30 : 63,014,797.95 = 13,258,907.20 : x
  2. Step 2: Convert to fraction form
    42,009,865.30/63,014,797.95 = 13,258,907.20/x
  3. Step 3: Cross multiply
    42,009,865.30x = 63,014,797.95 × 13,258,907.20
  4. Step 4: Simplify right side
    42,009,865.30x = 835,507,358,245,800.25
  5. Step 5: Solve for x
    x = 835,507,358,245,800.25/42,009,865.30
  6. Step 6: Final answer
    x = 19,888,360.80

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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.