Home / 1,240,306,510.06-1,860,362,137-540,782,137.90

Finding the Fourth Proportional to 1,240,306,510.06, 1,860,362,137 and 540,782,137.90

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Solution

The fourth proportional to 1,240,306,510.06, 1,860,362,137 and 540,782,137.90 is: 811,130,640.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,306,510.06 : 1,860,362,137 = 540,782,137.90 : x
  2. Step 2: Convert to fraction form
    1,240,306,510.06/1,860,362,137 = 540,782,137.90/x
  3. Step 3: Cross multiply
    1,240,306,510.06x = 1,860,362,137 × 540,782,137.90
  4. Step 4: Simplify right side
    1,240,306,510.06x = 1,006,050,613,715,072,640
  5. Step 5: Solve for x
    x = 1,006,050,613,715,072,640/1,240,306,510.06
  6. Step 6: Final answer
    x = 811,130,640.33

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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.