Home / 99,772,322.40-149,546,509.20-42,254,805.60

Finding the Fourth Proportional to 99,772,322.40, 149,546,509.20 and 42,254,805.60

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Solution

The fourth proportional to 99,772,322.40, 149,546,509.20 and 42,254,805.60 is: 63,334,785.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,772,322.40 : 149,546,509.20 = 42,254,805.60 : x
  2. Step 2: Convert to fraction form
    99,772,322.40/149,546,509.20 = 42,254,805.60/x
  3. Step 3: Cross multiply
    99,772,322.40x = 149,546,509.20 × 42,254,805.60
  4. Step 4: Simplify right side
    99,772,322.40x = 6,319,058,674,404,611
  5. Step 5: Solve for x
    x = 6,319,058,674,404,611/99,772,322.40
  6. Step 6: Final answer
    x = 63,334,785.86

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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.