Home / 21,730,206.40-29,985,929.52-12,563,440

Finding the Fourth Proportional to 21,730,206.40, 29,985,929.52 and 12,563,440

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Solution

The fourth proportional to 21,730,206.40, 29,985,929.52 and 12,563,440 is: 17,336,532.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,730,206.40 : 29,985,929.52 = 12,563,440 : x
  2. Step 2: Convert to fraction form
    21,730,206.40/29,985,929.52 = 12,563,440/x
  3. Step 3: Cross multiply
    21,730,206.40x = 29,985,929.52 × 12,563,440
  4. Step 4: Simplify right side
    21,730,206.40x = 376,726,426,368,748.81
  5. Step 5: Solve for x
    x = 376,726,426,368,748.81/21,730,206.40
  6. Step 6: Final answer
    x = 17,336,532.36

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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.