Home / 31,502,715.90-47,159,595.45-18,716,639.10

Finding the Fourth Proportional to 31,502,715.90, 47,159,595.45 and 18,716,639.10

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Solution

The fourth proportional to 31,502,715.90, 47,159,595.45 and 18,716,639.10 is: 28,018,826.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,502,715.90 : 47,159,595.45 = 18,716,639.10 : x
  2. Step 2: Convert to fraction form
    31,502,715.90/47,159,595.45 = 18,716,639.10/x
  3. Step 3: Cross multiply
    31,502,715.90x = 47,159,595.45 × 18,716,639.10
  4. Step 4: Simplify right side
    31,502,715.90x = 882,669,128,139,652.25
  5. Step 5: Solve for x
    x = 882,669,128,139,652.25/31,502,715.90
  6. Step 6: Final answer
    x = 28,018,826.41

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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.