Home / 290,624,976,009.60-435,937,464,014.40-212,260,811,913.60

Finding the Fourth Proportional to 290,624,976,009.60, 435,937,464,014.40 and 212,260,811,913.60

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Solution

The fourth proportional to 290,624,976,009.60, 435,937,464,014.40 and 212,260,811,913.60 is: 318,391,217,870.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,624,976,009.60 : 435,937,464,014.40 = 212,260,811,913.60 : x
  2. Step 2: Convert to fraction form
    290,624,976,009.60/435,937,464,014.40 = 212,260,811,913.60/x
  3. Step 3: Cross multiply
    290,624,976,009.60x = 435,937,464,014.40 × 212,260,811,913.60
  4. Step 4: Simplify right side
    290,624,976,009.60x = 92,532,440,055,252,330,217,472
  5. Step 5: Solve for x
    x = 92,532,440,055,252,330,217,472/290,624,976,009.60
  6. Step 6: Final answer
    x = 318,391,217,870.40

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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.