Home / 1,119,641,702.80-1,678,230,835.80-392,256,000.40

Finding the Fourth Proportional to 1,119,641,702.80, 1,678,230,835.80 and 392,256,000.40

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Solution

The fourth proportional to 1,119,641,702.80, 1,678,230,835.80 and 392,256,000.40 is: 587,952,479.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,641,702.80 : 1,678,230,835.80 = 392,256,000.40 : x
  2. Step 2: Convert to fraction form
    1,119,641,702.80/1,678,230,835.80 = 392,256,000.40/x
  3. Step 3: Cross multiply
    1,119,641,702.80x = 1,678,230,835.80 × 392,256,000.40
  4. Step 4: Simplify right side
    1,119,641,702.80x = 658,296,115,398,857,088
  5. Step 5: Solve for x
    x = 658,296,115,398,857,088/1,119,641,702.80
  6. Step 6: Final answer
    x = 587,952,479.58

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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.