Home / 72,508,941.66-100,064,756.48-40,724,712.41

Finding the Fourth Proportional to 72,508,941.66, 100,064,756.48 and 40,724,712.41

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Solution

The fourth proportional to 72,508,941.66, 100,064,756.48 and 40,724,712.41 is: 56,201,460.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,508,941.66 : 100,064,756.48 = 40,724,712.41 : x
  2. Step 2: Convert to fraction form
    72,508,941.66/100,064,756.48 = 40,724,712.41/x
  3. Step 3: Cross multiply
    72,508,941.66x = 100,064,756.48 × 40,724,712.41
  4. Step 4: Simplify right side
    72,508,941.66x = 4,075,108,429,876,334
  5. Step 5: Solve for x
    x = 4,075,108,429,876,334/72,508,941.66
  6. Step 6: Final answer
    x = 56,201,460.63

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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.