Home / 31,679,126.28-43,710,871.02-19,280,915.40

Finding the Fourth Proportional to 31,679,126.28, 43,710,871.02 and 19,280,915.40

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Solution

The fourth proportional to 31,679,126.28, 43,710,871.02 and 19,280,915.40 is: 26,603,814.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,679,126.28 : 43,710,871.02 = 19,280,915.40 : x
  2. Step 2: Convert to fraction form
    31,679,126.28/43,710,871.02 = 19,280,915.40/x
  3. Step 3: Cross multiply
    31,679,126.28x = 43,710,871.02 × 19,280,915.40
  4. Step 4: Simplify right side
    31,679,126.28x = 842,785,606,196,931.75
  5. Step 5: Solve for x
    x = 842,785,606,196,931.75/31,679,126.28
  6. Step 6: Final answer
    x = 26,603,814.72

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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.