Home / 30,077,492.81-45,122,039.55-12,805,377.37

Finding the Fourth Proportional to 30,077,492.81, 45,122,039.55 and 12,805,377.37

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Solution

The fourth proportional to 30,077,492.81, 45,122,039.55 and 12,805,377.37 is: 19,210,535.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,077,492.81 : 45,122,039.55 = 12,805,377.37 : x
  2. Step 2: Convert to fraction form
    30,077,492.81/45,122,039.55 = 12,805,377.37/x
  3. Step 3: Cross multiply
    30,077,492.81x = 45,122,039.55 × 12,805,377.37
  4. Step 4: Simplify right side
    30,077,492.81x = 577,804,744,029,009.88
  5. Step 5: Solve for x
    x = 577,804,744,029,009.88/30,077,492.81
  6. Step 6: Final answer
    x = 19,210,535.52

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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.