Home / 920,277,750.48-1,380,444,970.20-402,441,640.08

Finding the Fourth Proportional to 920,277,750.48, 1,380,444,970.20 and 402,441,640.08

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Solution

The fourth proportional to 920,277,750.48, 1,380,444,970.20 and 402,441,640.08 is: 603,674,855.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,277,750.48 : 1,380,444,970.20 = 402,441,640.08 : x
  2. Step 2: Convert to fraction form
    920,277,750.48/1,380,444,970.20 = 402,441,640.08/x
  3. Step 3: Cross multiply
    920,277,750.48x = 1,380,444,970.20 × 402,441,640.08
  4. Step 4: Simplify right side
    920,277,750.48x = 555,548,537,847,474,752
  5. Step 5: Solve for x
    x = 555,548,537,847,474,752/920,277,750.48
  6. Step 6: Final answer
    x = 603,674,855.29

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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.