Home / 56,549,887.02-78,039,157.05-31,771,118.70

Finding the Fourth Proportional to 56,549,887.02, 78,039,157.05 and 31,771,118.70

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Solution

The fourth proportional to 56,549,887.02, 78,039,157.05 and 31,771,118.70 is: 43,844,319.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,549,887.02 : 78,039,157.05 = 31,771,118.70 : x
  2. Step 2: Convert to fraction form
    56,549,887.02/78,039,157.05 = 31,771,118.70/x
  3. Step 3: Cross multiply
    56,549,887.02x = 78,039,157.05 × 31,771,118.70
  4. Step 4: Simplify right side
    56,549,887.02x = 2,479,391,321,883,491.50
  5. Step 5: Solve for x
    x = 2,479,391,321,883,491.50/56,549,887.02
  6. Step 6: Final answer
    x = 43,844,319.64

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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.