Home / 868,032,490.80-1,302,192,203.40-402,159,500.40

Finding the Fourth Proportional to 868,032,490.80, 1,302,192,203.40 and 402,159,500.40

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Solution

The fourth proportional to 868,032,490.80, 1,302,192,203.40 and 402,159,500.40 is: 603,305,718.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,032,490.80 : 1,302,192,203.40 = 402,159,500.40 : x
  2. Step 2: Convert to fraction form
    868,032,490.80/1,302,192,203.40 = 402,159,500.40/x
  3. Step 3: Cross multiply
    868,032,490.80x = 1,302,192,203.40 × 402,159,500.40
  4. Step 4: Simplify right side
    868,032,490.80x = 523,688,965,944,119,168
  5. Step 5: Solve for x
    x = 523,688,965,944,119,168/868,032,490.80
  6. Step 6: Final answer
    x = 603,305,718.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.