Home / 145,522,643.60-218,283,965.40-87,323,949.20

Finding the Fourth Proportional to 145,522,643.60, 218,283,965.40 and 87,323,949.20

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Solution

The fourth proportional to 145,522,643.60, 218,283,965.40 and 87,323,949.20 is: 130,985,923.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,522,643.60 : 218,283,965.40 = 87,323,949.20 : x
  2. Step 2: Convert to fraction form
    145,522,643.60/218,283,965.40 = 87,323,949.20/x
  3. Step 3: Cross multiply
    145,522,643.60x = 218,283,965.40 × 87,323,949.20
  4. Step 4: Simplify right side
    145,522,643.60x = 19,061,417,905,764,160
  5. Step 5: Solve for x
    x = 19,061,417,905,764,160/145,522,643.60
  6. Step 6: Final answer
    x = 130,985,923.80

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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.