Home / 790,355,390.95-1,185,535,689.23-200,145,307.51

Finding the Fourth Proportional to 790,355,390.95, 1,185,535,689.23 and 200,145,307.51

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Solution

The fourth proportional to 790,355,390.95, 1,185,535,689.23 and 200,145,307.51 is: 300,218,620.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,355,390.95 : 1,185,535,689.23 = 200,145,307.51 : x
  2. Step 2: Convert to fraction form
    790,355,390.95/1,185,535,689.23 = 200,145,307.51/x
  3. Step 3: Cross multiply
    790,355,390.95x = 1,185,535,689.23 × 200,145,307.51
  4. Step 4: Simplify right side
    790,355,390.95x = 237,279,405,085,018,144
  5. Step 5: Solve for x
    x = 237,279,405,085,018,144/790,355,390.95
  6. Step 6: Final answer
    x = 300,218,620.39

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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.