Home / 215,685,760,609.80-323,528,640,914.70-90,006,553,978.20

Finding the Fourth Proportional to 215,685,760,609.80, 323,528,640,914.70 and 90,006,553,978.20

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Solution

The fourth proportional to 215,685,760,609.80, 323,528,640,914.70 and 90,006,553,978.20 is: 135,009,830,967.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,685,760,609.80 : 323,528,640,914.70 = 90,006,553,978.20 : x
  2. Step 2: Convert to fraction form
    215,685,760,609.80/323,528,640,914.70 = 90,006,553,978.20/x
  3. Step 3: Cross multiply
    215,685,760,609.80x = 323,528,640,914.70 × 90,006,553,978.20
  4. Step 4: Simplify right side
    215,685,760,609.80x = 29,119,698,081,982,632,165,376
  5. Step 5: Solve for x
    x = 29,119,698,081,982,632,165,376/215,685,760,609.80
  6. Step 6: Final answer
    x = 135,009,830,967.30

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1.5x scale

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.