Home / 290,896,423.02-436,263,901.41-80,758,834.20

Finding the Fourth Proportional to 290,896,423.02, 436,263,901.41 and 80,758,834.20

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Solution

The fourth proportional to 290,896,423.02, 436,263,901.41 and 80,758,834.20 is: 121,115,838.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,896,423.02 : 436,263,901.41 = 80,758,834.20 : x
  2. Step 2: Convert to fraction form
    290,896,423.02/436,263,901.41 = 80,758,834.20/x
  3. Step 3: Cross multiply
    290,896,423.02x = 436,263,901.41 × 80,758,834.20
  4. Step 4: Simplify right side
    290,896,423.02x = 35,232,164,081,415,340
  5. Step 5: Solve for x
    x = 35,232,164,081,415,340/290,896,423.02
  6. Step 6: Final answer
    x = 121,115,838.12

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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.