Home / 830,871,027.60-1,245,298,771.80-370,320,320.40

Finding the Fourth Proportional to 830,871,027.60, 1,245,298,771.80 and 370,320,320.40

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Solution

The fourth proportional to 830,871,027.60, 1,245,298,771.80 and 370,320,320.40 is: 555,031,316.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,871,027.60 : 1,245,298,771.80 = 370,320,320.40 : x
  2. Step 2: Convert to fraction form
    830,871,027.60/1,245,298,771.80 = 370,320,320.40/x
  3. Step 3: Cross multiply
    830,871,027.60x = 1,245,298,771.80 × 370,320,320.40
  4. Step 4: Simplify right side
    830,871,027.60x = 461,159,440,166,702,464
  5. Step 5: Solve for x
    x = 461,159,440,166,702,464/830,871,027.60
  6. Step 6: Final answer
    x = 555,031,316.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.