Home / 839,808,889.80-1,259,713,334.70-533,446,931.40

Finding the Fourth Proportional to 839,808,889.80, 1,259,713,334.70 and 533,446,931.40

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Solution

The fourth proportional to 839,808,889.80, 1,259,713,334.70 and 533,446,931.40 is: 800,170,397.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,808,889.80 : 1,259,713,334.70 = 533,446,931.40 : x
  2. Step 2: Convert to fraction form
    839,808,889.80/1,259,713,334.70 = 533,446,931.40/x
  3. Step 3: Cross multiply
    839,808,889.80x = 1,259,713,334.70 × 533,446,931.40
  4. Step 4: Simplify right side
    839,808,889.80x = 671,990,212,839,376,128
  5. Step 5: Solve for x
    x = 671,990,212,839,376,128/839,808,889.80
  6. Step 6: Final answer
    x = 800,170,397.10

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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.