Home / 243,768,924,345.15-336,401,901,655.04-135,382,021,615.87

Finding the Fourth Proportional to 243,768,924,345.15, 336,401,901,655.04 and 135,382,021,615.87

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Solution

The fourth proportional to 243,768,924,345.15, 336,401,901,655.04 and 135,382,021,615.87 is: 186,827,626,383.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,768,924,345.15 : 336,401,901,655.04 = 135,382,021,615.87 : x
  2. Step 2: Convert to fraction form
    243,768,924,345.15/336,401,901,655.04 = 135,382,021,615.87/x
  3. Step 3: Cross multiply
    243,768,924,345.15x = 336,401,901,655.04 × 135,382,021,615.87
  4. Step 4: Simplify right side
    243,768,924,345.15x = 45,542,769,521,482,394,501,120
  5. Step 5: Solve for x
    x = 45,542,769,521,482,394,501,120/243,768,924,345.15
  6. Step 6: Final answer
    x = 186,827,626,383.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.