Home / 145,522,693.60-218,284,040.40-87,323,999.20

Finding the Fourth Proportional to 145,522,693.60, 218,284,040.40 and 87,323,999.20

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Solution

The fourth proportional to 145,522,693.60, 218,284,040.40 and 87,323,999.20 is: 130,985,998.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,522,693.60 : 218,284,040.40 = 87,323,999.20 : x
  2. Step 2: Convert to fraction form
    145,522,693.60/218,284,040.40 = 87,323,999.20/x
  3. Step 3: Cross multiply
    145,522,693.60x = 218,284,040.40 × 87,323,999.20
  4. Step 4: Simplify right side
    145,522,693.60x = 19,061,435,369,262,368
  5. Step 5: Solve for x
    x = 19,061,435,369,262,368/145,522,693.60
  6. Step 6: Final answer
    x = 130,985,998.80

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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.