Home / 280,908,035.40-421,362,053.10-189,075,030.60

Finding the Fourth Proportional to 280,908,035.40, 421,362,053.10 and 189,075,030.60

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Solution

The fourth proportional to 280,908,035.40, 421,362,053.10 and 189,075,030.60 is: 283,612,545.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,908,035.40 : 421,362,053.10 = 189,075,030.60 : x
  2. Step 2: Convert to fraction form
    280,908,035.40/421,362,053.10 = 189,075,030.60/x
  3. Step 3: Cross multiply
    280,908,035.40x = 421,362,053.10 × 189,075,030.60
  4. Step 4: Simplify right side
    280,908,035.40x = 79,669,043,083,561,328
  5. Step 5: Solve for x
    x = 79,669,043,083,561,328/280,908,035.40
  6. Step 6: Final answer
    x = 283,612,545.90

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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.