Home / 19,881,088.58-29,818,132.93-5,308,188.86

Finding the Fourth Proportional to 19,881,088.58, 29,818,132.93 and 5,308,188.86

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Solution

The fourth proportional to 19,881,088.58, 29,818,132.93 and 5,308,188.86 is: 7,961,348.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,881,088.58 : 29,818,132.93 = 5,308,188.86 : x
  2. Step 2: Convert to fraction form
    19,881,088.58/29,818,132.93 = 5,308,188.86/x
  3. Step 3: Cross multiply
    19,881,088.58x = 29,818,132.93 × 5,308,188.86
  4. Step 4: Simplify right side
    19,881,088.58x = 158,280,281,045,025.16
  5. Step 5: Solve for x
    x = 158,280,281,045,025.16/19,881,088.58
  6. Step 6: Final answer
    x = 7,961,348.82

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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.