Home / 760,105,999.36-1,049,056,403.79-425,600,078.72

Finding the Fourth Proportional to 760,105,999.36, 1,049,056,403.79 and 425,600,078.72

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Solution

The fourth proportional to 760,105,999.36, 1,049,056,403.79 and 425,600,078.72 is: 587,389,769.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,105,999.36 : 1,049,056,403.79 = 425,600,078.72 : x
  2. Step 2: Convert to fraction form
    760,105,999.36/1,049,056,403.79 = 425,600,078.72/x
  3. Step 3: Cross multiply
    760,105,999.36x = 1,049,056,403.79 × 425,600,078.72
  4. Step 4: Simplify right side
    760,105,999.36x = 446,478,488,031,813,888
  5. Step 5: Solve for x
    x = 446,478,488,031,813,888/760,105,999.36
  6. Step 6: Final answer
    x = 587,389,769.85

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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.