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Finding the Fourth Proportional to 30,528,027.30, 42,852,612.30 and 30,528,027.30

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Solution

The fourth proportional to 30,528,027.30, 42,852,612.30 and 30,528,027.30 is: 42,852,612.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,528,027.30 : 42,852,612.30 = 30,528,027.30 : x
  2. Step 2: Convert to fraction form
    30,528,027.30/42,852,612.30 = 30,528,027.30/x
  3. Step 3: Cross multiply
    30,528,027.30x = 42,852,612.30 × 30,528,027.30
  4. Step 4: Simplify right side
    30,528,027.30x = 1,308,205,718,170,715.75
  5. Step 5: Solve for x
    x = 1,308,205,718,170,715.75/30,528,027.30
  6. Step 6: Final answer
    x = 42,852,612.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.