Home / 72,227,829,437.21-99,674,637,529.65-40,113,191,591.50

Finding the Fourth Proportional to 72,227,829,437.21, 99,674,637,529.65 and 40,113,191,591.50

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Solution

The fourth proportional to 72,227,829,437.21, 99,674,637,529.65 and 40,113,191,591.50 is: 55,356,333,745.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,227,829,437.21 : 99,674,637,529.65 = 40,113,191,591.50 : x
  2. Step 2: Convert to fraction form
    72,227,829,437.21/99,674,637,529.65 = 40,113,191,591.50/x
  3. Step 3: Cross multiply
    72,227,829,437.21x = 99,674,637,529.65 × 40,113,191,591.50
  4. Step 4: Simplify right side
    72,227,829,437.21x = 3,998,267,832,040,166,522,880
  5. Step 5: Solve for x
    x = 3,998,267,832,040,166,522,880/72,227,829,437.21
  6. Step 6: Final answer
    x = 55,356,333,745.51

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1.5x scale

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.