Home / 579,871,655.60-800,223,003.12-319,111,271.60

Finding the Fourth Proportional to 579,871,655.60, 800,223,003.12 and 319,111,271.60

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Solution

The fourth proportional to 579,871,655.60, 800,223,003.12 and 319,111,271.60 is: 440,373,619.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,871,655.60 : 800,223,003.12 = 319,111,271.60 : x
  2. Step 2: Convert to fraction form
    579,871,655.60/800,223,003.12 = 319,111,271.60/x
  3. Step 3: Cross multiply
    579,871,655.60x = 800,223,003.12 × 319,111,271.60
  4. Step 4: Simplify right side
    579,871,655.60x = 255,360,180,089,193,984
  5. Step 5: Solve for x
    x = 255,360,180,089,193,984/579,871,655.60
  6. Step 6: Final answer
    x = 440,373,619.96

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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.