Home / 212,316,473.69-318,493,101.86-64,797,221.80

Finding the Fourth Proportional to 212,316,473.69, 318,493,101.86 and 64,797,221.80

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Solution

The fourth proportional to 212,316,473.69, 318,493,101.86 and 64,797,221.80 is: 97,201,445.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,316,473.69 : 318,493,101.86 = 64,797,221.80 : x
  2. Step 2: Convert to fraction form
    212,316,473.69/318,493,101.86 = 64,797,221.80/x
  3. Step 3: Cross multiply
    212,316,473.69x = 318,493,101.86 × 64,797,221.80
  4. Step 4: Simplify right side
    212,316,473.69x = 20,637,468,161,075,964
  5. Step 5: Solve for x
    x = 20,637,468,161,075,964/212,316,473.69
  6. Step 6: Final answer
    x = 97,201,445.57

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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.