Home / 77,708,704,499.80-116,563,056,749.70-72,129,849,458.20

Finding the Fourth Proportional to 77,708,704,499.80, 116,563,056,749.70 and 72,129,849,458.20

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Solution

The fourth proportional to 77,708,704,499.80, 116,563,056,749.70 and 72,129,849,458.20 is: 108,194,774,187.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,708,704,499.80 : 116,563,056,749.70 = 72,129,849,458.20 : x
  2. Step 2: Convert to fraction form
    77,708,704,499.80/116,563,056,749.70 = 72,129,849,458.20/x
  3. Step 3: Cross multiply
    77,708,704,499.80x = 116,563,056,749.70 × 72,129,849,458.20
  4. Step 4: Simplify right side
    77,708,704,499.80x = 8,407,675,735,743,483,871,232
  5. Step 5: Solve for x
    x = 8,407,675,735,743,483,871,232/77,708,704,499.80
  6. Step 6: Final answer
    x = 108,194,774,187.30

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1.5x scale

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.