Home / 42,946,575-64,653,457.38-39,132,971.88

Finding the Fourth Proportional to 42,946,575, 64,653,457.38 and 39,132,971.88

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Solution

The fourth proportional to 42,946,575, 64,653,457.38 and 39,132,971.88 is: 58,912,309.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,946,575 : 64,653,457.38 = 39,132,971.88 : x
  2. Step 2: Convert to fraction form
    42,946,575/64,653,457.38 = 39,132,971.88/x
  3. Step 3: Cross multiply
    42,946,575x = 64,653,457.38 × 39,132,971.88
  4. Step 4: Simplify right side
    42,946,575x = 2,530,081,929,596,319
  5. Step 5: Solve for x
    x = 2,530,081,929,596,319/42,946,575
  6. Step 6: Final answer
    x = 58,912,309.76

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.