Home / 72,963,229-100,690,539.06-39,926,368.12

Finding the Fourth Proportional to 72,963,229, 100,690,539.06 and 39,926,368.12

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Solution

The fourth proportional to 72,963,229, 100,690,539.06 and 39,926,368.12 is: 55,099,090.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,963,229 : 100,690,539.06 = 39,926,368.12 : x
  2. Step 2: Convert to fraction form
    72,963,229/100,690,539.06 = 39,926,368.12/x
  3. Step 3: Cross multiply
    72,963,229x = 100,690,539.06 × 39,926,368.12
  4. Step 4: Simplify right side
    72,963,229x = 4,020,207,528,710,798.50
  5. Step 5: Solve for x
    x = 4,020,207,528,710,798.50/72,963,229
  6. Step 6: Final answer
    x = 55,099,090.10

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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.