Home / 30,457,230.30-45,685,845.45-21,387,303.90

Finding the Fourth Proportional to 30,457,230.30, 45,685,845.45 and 21,387,303.90

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Solution

The fourth proportional to 30,457,230.30, 45,685,845.45 and 21,387,303.90 is: 32,080,955.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,457,230.30 : 45,685,845.45 = 21,387,303.90 : x
  2. Step 2: Convert to fraction form
    30,457,230.30/45,685,845.45 = 21,387,303.90/x
  3. Step 3: Cross multiply
    30,457,230.30x = 45,685,845.45 × 21,387,303.90
  4. Step 4: Simplify right side
    30,457,230.30x = 977,097,060,567,582.25
  5. Step 5: Solve for x
    x = 977,097,060,567,582.25/30,457,230.30
  6. Step 6: Final answer
    x = 32,080,955.85

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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.