Home / 39,139,849.40-58,709,774.10-12,210,006.20

Finding the Fourth Proportional to 39,139,849.40, 58,709,774.10 and 12,210,006.20

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Solution

The fourth proportional to 39,139,849.40, 58,709,774.10 and 12,210,006.20 is: 18,315,009.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,139,849.40 : 58,709,774.10 = 12,210,006.20 : x
  2. Step 2: Convert to fraction form
    39,139,849.40/58,709,774.10 = 12,210,006.20/x
  3. Step 3: Cross multiply
    39,139,849.40x = 58,709,774.10 × 12,210,006.20
  4. Step 4: Simplify right side
    39,139,849.40x = 716,846,705,761,599.38
  5. Step 5: Solve for x
    x = 716,846,705,761,599.38/39,139,849.40
  6. Step 6: Final answer
    x = 18,315,009.30

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1.5x scale

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.