Home / 72,605,716.80-108,908,575.20-56,166,475.20

Finding the Fourth Proportional to 72,605,716.80, 108,908,575.20 and 56,166,475.20

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Solution

The fourth proportional to 72,605,716.80, 108,908,575.20 and 56,166,475.20 is: 84,249,712.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,605,716.80 : 108,908,575.20 = 56,166,475.20 : x
  2. Step 2: Convert to fraction form
    72,605,716.80/108,908,575.20 = 56,166,475.20/x
  3. Step 3: Cross multiply
    72,605,716.80x = 108,908,575.20 × 56,166,475.20
  4. Step 4: Simplify right side
    72,605,716.80x = 6,117,010,788,038,136
  5. Step 5: Solve for x
    x = 6,117,010,788,038,136/72,605,716.80
  6. Step 6: Final answer
    x = 84,249,712.80

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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.