Home / 124,685,384.10-172,037,281.20-74,439,823.74

Finding the Fourth Proportional to 124,685,384.10, 172,037,281.20 and 74,439,823.74

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Solution

The fourth proportional to 124,685,384.10, 172,037,281.20 and 74,439,823.74 is: 102,709,912.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,685,384.10 : 172,037,281.20 = 74,439,823.74 : x
  2. Step 2: Convert to fraction form
    124,685,384.10/172,037,281.20 = 74,439,823.74/x
  3. Step 3: Cross multiply
    124,685,384.10x = 172,037,281.20 × 74,439,823.74
  4. Step 4: Simplify right side
    124,685,384.10x = 12,806,424,889,236,814
  5. Step 5: Solve for x
    x = 12,806,424,889,236,814/124,685,384.10
  6. Step 6: Final answer
    x = 102,709,912.49

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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.