Home / 30,690,700,931.42-42,352,720,226.79-17,142,530,875.10

Finding the Fourth Proportional to 30,690,700,931.42, 42,352,720,226.79 and 17,142,530,875.10

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Solution

The fourth proportional to 30,690,700,931.42, 42,352,720,226.79 and 17,142,530,875.10 is: 23,656,442,899.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,690,700,931.42 : 42,352,720,226.79 = 17,142,530,875.10 : x
  2. Step 2: Convert to fraction form
    30,690,700,931.42/42,352,720,226.79 = 17,142,530,875.10/x
  3. Step 3: Cross multiply
    30,690,700,931.42x = 42,352,720,226.79 × 17,142,530,875.10
  4. Step 4: Simplify right side
    30,690,700,931.42x = 726,032,814,132,219,871,232
  5. Step 5: Solve for x
    x = 726,032,814,132,219,871,232/30,690,700,931.42
  6. Step 6: Final answer
    x = 23,656,442,899.58

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Double scale
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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.