Home / 280,908,045.90-421,362,068.85-144,859,149.90

Finding the Fourth Proportional to 280,908,045.90, 421,362,068.85 and 144,859,149.90

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Solution

The fourth proportional to 280,908,045.90, 421,362,068.85 and 144,859,149.90 is: 217,288,724.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,908,045.90 : 421,362,068.85 = 144,859,149.90 : x
  2. Step 2: Convert to fraction form
    280,908,045.90/421,362,068.85 = 144,859,149.90/x
  3. Step 3: Cross multiply
    280,908,045.90x = 421,362,068.85 × 144,859,149.90
  4. Step 4: Simplify right side
    280,908,045.90x = 61,038,151,093,716,280
  5. Step 5: Solve for x
    x = 61,038,151,093,716,280/280,908,045.90
  6. Step 6: Final answer
    x = 217,288,724.85

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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.