Home / 429,735,756.96-644,602,830.12-134,653,468.32

Finding the Fourth Proportional to 429,735,756.96, 644,602,830.12 and 134,653,468.32

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Solution

The fourth proportional to 429,735,756.96, 644,602,830.12 and 134,653,468.32 is: 201,979,950.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,735,756.96 : 644,602,830.12 = 134,653,468.32 : x
  2. Step 2: Convert to fraction form
    429,735,756.96/644,602,830.12 = 134,653,468.32/x
  3. Step 3: Cross multiply
    429,735,756.96x = 644,602,830.12 × 134,653,468.32
  4. Step 4: Simplify right side
    429,735,756.96x = 86,798,006,764,545,760
  5. Step 5: Solve for x
    x = 86,798,006,764,545,760/429,735,756.96
  6. Step 6: Final answer
    x = 201,979,950.14

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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.