Home / 56,754,901.07-78,321,762.76-30,649,416.59

Finding the Fourth Proportional to 56,754,901.07, 78,321,762.76 and 30,649,416.59

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Solution

The fourth proportional to 56,754,901.07, 78,321,762.76 and 30,649,416.59 is: 42,296,194.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,754,901.07 : 78,321,762.76 = 30,649,416.59 : x
  2. Step 2: Convert to fraction form
    56,754,901.07/78,321,762.76 = 30,649,416.59/x
  3. Step 3: Cross multiply
    56,754,901.07x = 78,321,762.76 × 30,649,416.59
  4. Step 4: Simplify right side
    56,754,901.07x = 2,400,516,334,984,881.50
  5. Step 5: Solve for x
    x = 2,400,516,334,984,881.50/56,754,901.07
  6. Step 6: Final answer
    x = 42,296,194.51

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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.