Home / 290,839,686.60-433,698,061.40-288,216,527.04

Finding the Fourth Proportional to 290,839,686.60, 433,698,061.40 and 288,216,527.04

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Solution

The fourth proportional to 290,839,686.60, 433,698,061.40 and 288,216,527.04 is: 429,786,424.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,839,686.60 : 433,698,061.40 = 288,216,527.04 : x
  2. Step 2: Convert to fraction form
    290,839,686.60/433,698,061.40 = 288,216,527.04/x
  3. Step 3: Cross multiply
    290,839,686.60x = 433,698,061.40 × 288,216,527.04
  4. Step 4: Simplify right side
    290,839,686.60x = 124,998,949,039,247,600
  5. Step 5: Solve for x
    x = 124,998,949,039,247,600/290,839,686.60
  6. Step 6: Final answer
    x = 429,786,424.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.