Home / 108,008,406.72-149,015,114.32-70,314,407.22

Finding the Fourth Proportional to 108,008,406.72, 149,015,114.32 and 70,314,407.22

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Solution

The fourth proportional to 108,008,406.72, 149,015,114.32 and 70,314,407.22 is: 97,010,128.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,008,406.72 : 149,015,114.32 = 70,314,407.22 : x
  2. Step 2: Convert to fraction form
    108,008,406.72/149,015,114.32 = 70,314,407.22/x
  3. Step 3: Cross multiply
    108,008,406.72x = 149,015,114.32 × 70,314,407.22
  4. Step 4: Simplify right side
    108,008,406.72x = 10,477,909,429,908,334
  5. Step 5: Solve for x
    x = 10,477,909,429,908,334/108,008,406.72
  6. Step 6: Final answer
    x = 97,010,128.64

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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.