Home / 72,607,298-100,200,172.20-40,014,349.52

Finding the Fourth Proportional to 72,607,298, 100,200,172.20 and 40,014,349.52

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Solution

The fourth proportional to 72,607,298, 100,200,172.20 and 40,014,349.52 is: 55,220,960.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,607,298 : 100,200,172.20 = 40,014,349.52 : x
  2. Step 2: Convert to fraction form
    72,607,298/100,200,172.20 = 40,014,349.52/x
  3. Step 3: Cross multiply
    72,607,298x = 100,200,172.20 × 40,014,349.52
  4. Step 4: Simplify right side
    72,607,298x = 4,009,444,712,374,988
  5. Step 5: Solve for x
    x = 4,009,444,712,374,988/72,607,298
  6. Step 6: Final answer
    x = 55,220,960.19

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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.