Home / 472,392,000.30-708,588,000.45-442,158,912.30

Finding the Fourth Proportional to 472,392,000.30, 708,588,000.45 and 442,158,912.30

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Solution

The fourth proportional to 472,392,000.30, 708,588,000.45 and 442,158,912.30 is: 663,238,368.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,000.30 : 708,588,000.45 = 442,158,912.30 : x
  2. Step 2: Convert to fraction form
    472,392,000.30/708,588,000.45 = 442,158,912.30/x
  3. Step 3: Cross multiply
    472,392,000.30x = 708,588,000.45 × 442,158,912.30
  4. Step 4: Simplify right side
    472,392,000.30x = 313,308,499,547,803,968
  5. Step 5: Solve for x
    x = 313,308,499,547,803,968/472,392,000.30
  6. Step 6: Final answer
    x = 663,238,368.45

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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.