Home / 21,006,252.72-31,509,386.64-6,630,774.48

Finding the Fourth Proportional to 21,006,252.72, 31,509,386.64 and 6,630,774.48

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Solution

The fourth proportional to 21,006,252.72, 31,509,386.64 and 6,630,774.48 is: 9,946,164.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,006,252.72 : 31,509,386.64 = 6,630,774.48 : x
  2. Step 2: Convert to fraction form
    21,006,252.72/31,509,386.64 = 6,630,774.48/x
  3. Step 3: Cross multiply
    21,006,252.72x = 31,509,386.64 × 6,630,774.48
  4. Step 4: Simplify right side
    21,006,252.72x = 208,931,636,812,964.97
  5. Step 5: Solve for x
    x = 208,931,636,812,964.97/21,006,252.72
  6. Step 6: Final answer
    x = 9,946,164.11

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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.