Home / 402,282,904.80-603,282,639.60-143,506,567.20

Finding the Fourth Proportional to 402,282,904.80, 603,282,639.60 and 143,506,567.20

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Solution

The fourth proportional to 402,282,904.80, 603,282,639.60 and 143,506,567.20 is: 215,209,295.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,282,904.80 : 603,282,639.60 = 143,506,567.20 : x
  2. Step 2: Convert to fraction form
    402,282,904.80/603,282,639.60 = 143,506,567.20/x
  3. Step 3: Cross multiply
    402,282,904.80x = 603,282,639.60 × 143,506,567.20
  4. Step 4: Simplify right side
    402,282,904.80x = 86,575,020,660,350,784
  5. Step 5: Solve for x
    x = 86,575,020,660,350,784/402,282,904.80
  6. Step 6: Final answer
    x = 215,209,295.81

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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.