Home / 487,596,059.64-672,880,537.47-289,520,606.88

Finding the Fourth Proportional to 487,596,059.64, 672,880,537.47 and 289,520,606.88

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Solution

The fourth proportional to 487,596,059.64, 672,880,537.47 and 289,520,606.88 is: 399,537,235.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,596,059.64 : 672,880,537.47 = 289,520,606.88 : x
  2. Step 2: Convert to fraction form
    487,596,059.64/672,880,537.47 = 289,520,606.88/x
  3. Step 3: Cross multiply
    487,596,059.64x = 672,880,537.47 × 289,520,606.88
  4. Step 4: Simplify right side
    487,596,059.64x = 194,812,781,566,054,976
  5. Step 5: Solve for x
    x = 194,812,781,566,054,976/487,596,059.64
  6. Step 6: Final answer
    x = 399,537,235.21

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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.