Home / 1,119,166,476.80-1,678,749,715.20-392,060,710.40

Finding the Fourth Proportional to 1,119,166,476.80, 1,678,749,715.20 and 392,060,710.40

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Solution

The fourth proportional to 1,119,166,476.80, 1,678,749,715.20 and 392,060,710.40 is: 588,091,065.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,166,476.80 : 1,678,749,715.20 = 392,060,710.40 : x
  2. Step 2: Convert to fraction form
    1,119,166,476.80/1,678,749,715.20 = 392,060,710.40/x
  3. Step 3: Cross multiply
    1,119,166,476.80x = 1,678,749,715.20 × 392,060,710.40
  4. Step 4: Simplify right side
    1,119,166,476.80x = 658,171,805,925,109,632
  5. Step 5: Solve for x
    x = 658,171,805,925,109,632/1,119,166,476.80
  6. Step 6: Final answer
    x = 588,091,065.60

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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.