Home / 28,076,639.40-42,114,959.10-12,960,095.40

Finding the Fourth Proportional to 28,076,639.40, 42,114,959.10 and 12,960,095.40

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Solution

The fourth proportional to 28,076,639.40, 42,114,959.10 and 12,960,095.40 is: 19,440,143.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,076,639.40 : 42,114,959.10 = 12,960,095.40 : x
  2. Step 2: Convert to fraction form
    28,076,639.40/42,114,959.10 = 12,960,095.40/x
  3. Step 3: Cross multiply
    28,076,639.40x = 42,114,959.10 × 12,960,095.40
  4. Step 4: Simplify right side
    28,076,639.40x = 545,813,887,703,098.19
  5. Step 5: Solve for x
    x = 545,813,887,703,098.19/28,076,639.40
  6. Step 6: Final answer
    x = 19,440,143.10

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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.