Home / 8,688,691,529.36-11,990,789,140.20-5,120,549,029.52

Finding the Fourth Proportional to 8,688,691,529.36, 11,990,789,140.20 and 5,120,549,029.52

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Solution

The fourth proportional to 8,688,691,529.36, 11,990,789,140.20 and 5,120,549,029.52 is: 7,066,590,347.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,688,691,529.36 : 11,990,789,140.20 = 5,120,549,029.52 : x
  2. Step 2: Convert to fraction form
    8,688,691,529.36/11,990,789,140.20 = 5,120,549,029.52/x
  3. Step 3: Cross multiply
    8,688,691,529.36x = 11,990,789,140.20 × 5,120,549,029.52
  4. Step 4: Simplify right side
    8,688,691,529.36x = 61,399,423,695,030,075,392
  5. Step 5: Solve for x
    x = 61,399,423,695,030,075,392/8,688,691,529.36
  6. Step 6: Final answer
    x = 7,066,590,347.64

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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.