Home / 100,308,280.16-138,426,429.32-56,254,333.16

Finding the Fourth Proportional to 100,308,280.16, 138,426,429.32 and 56,254,333.16

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Solution

The fourth proportional to 100,308,280.16, 138,426,429.32 and 56,254,333.16 is: 77,631,542.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,308,280.16 : 138,426,429.32 = 56,254,333.16 : x
  2. Step 2: Convert to fraction form
    100,308,280.16/138,426,429.32 = 56,254,333.16/x
  3. Step 3: Cross multiply
    100,308,280.16x = 138,426,429.32 × 56,254,333.16
  4. Step 4: Simplify right side
    100,308,280.16x = 7,787,086,472,143,068
  5. Step 5: Solve for x
    x = 7,787,086,472,143,068/100,308,280.16
  6. Step 6: Final answer
    x = 77,631,542.08

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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.