Home / 1,122,890,165.10-1,549,484,437.08-621,088,148.58

Finding the Fourth Proportional to 1,122,890,165.10, 1,549,484,437.08 and 621,088,148.58

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Solution

The fourth proportional to 1,122,890,165.10, 1,549,484,437.08 and 621,088,148.58 is: 857,044,126.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,890,165.10 : 1,549,484,437.08 = 621,088,148.58 : x
  2. Step 2: Convert to fraction form
    1,122,890,165.10/1,549,484,437.08 = 621,088,148.58/x
  3. Step 3: Cross multiply
    1,122,890,165.10x = 1,549,484,437.08 × 621,088,148.58
  4. Step 4: Simplify right side
    1,122,890,165.10x = 962,366,420,279,540,736
  5. Step 5: Solve for x
    x = 962,366,420,279,540,736/1,122,890,165.10
  6. Step 6: Final answer
    x = 857,044,126.12

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.