Home / 553,811,421.48-764,495,083.72-345,070,696.90

Finding the Fourth Proportional to 553,811,421.48, 764,495,083.72 and 345,070,696.90

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Solution

The fourth proportional to 553,811,421.48, 764,495,083.72 and 345,070,696.90 is: 476,344,186.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,811,421.48 : 764,495,083.72 = 345,070,696.90 : x
  2. Step 2: Convert to fraction form
    553,811,421.48/764,495,083.72 = 345,070,696.90/x
  3. Step 3: Cross multiply
    553,811,421.48x = 764,495,083.72 × 345,070,696.90
  4. Step 4: Simplify right side
    553,811,421.48x = 263,804,851,312,061,760
  5. Step 5: Solve for x
    x = 263,804,851,312,061,760/553,811,421.48
  6. Step 6: Final answer
    x = 476,344,186.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.