Home / 538,153,905.40-807,230,858.10-470,129,457.40

Finding the Fourth Proportional to 538,153,905.40, 807,230,858.10 and 470,129,457.40

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Solution

The fourth proportional to 538,153,905.40, 807,230,858.10 and 470,129,457.40 is: 705,194,186.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,153,905.40 : 807,230,858.10 = 470,129,457.40 : x
  2. Step 2: Convert to fraction form
    538,153,905.40/807,230,858.10 = 470,129,457.40/x
  3. Step 3: Cross multiply
    538,153,905.40x = 807,230,858.10 × 470,129,457.40
  4. Step 4: Simplify right side
    538,153,905.40x = 379,503,005,315,089,408
  5. Step 5: Solve for x
    x = 379,503,005,315,089,408/538,153,905.40
  6. Step 6: Final answer
    x = 705,194,186.10

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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.