Home / 383,710,688,271.84-575,654,302,991.52-128,773,901,982.72

Finding the Fourth Proportional to 383,710,688,271.84, 575,654,302,991.52 and 128,773,901,982.72

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Solution

The fourth proportional to 383,710,688,271.84, 575,654,302,991.52 and 128,773,901,982.72 is: 193,190,476,718.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,710,688,271.84 : 575,654,302,991.52 = 128,773,901,982.72 : x
  2. Step 2: Convert to fraction form
    383,710,688,271.84/575,654,302,991.52 = 128,773,901,982.72/x
  3. Step 3: Cross multiply
    383,710,688,271.84x = 575,654,302,991.52 × 128,773,901,982.72
  4. Step 4: Simplify right side
    383,710,688,271.84x = 74,129,250,789,361,000,120,320
  5. Step 5: Solve for x
    x = 74,129,250,789,361,000,120,320/383,710,688,271.84
  6. Step 6: Final answer
    x = 193,190,476,718.87

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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.