Home / 210,721,128,260.50-316,143,783,595.22-84,886,972,328.98

Finding the Fourth Proportional to 210,721,128,260.50, 316,143,783,595.22 and 84,886,972,328.98

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Solution

The fourth proportional to 210,721,128,260.50, 316,143,783,595.22 and 84,886,972,328.98 is: 127,355,471,335.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,721,128,260.50 : 316,143,783,595.22 = 84,886,972,328.98 : x
  2. Step 2: Convert to fraction form
    210,721,128,260.50/316,143,783,595.22 = 84,886,972,328.98/x
  3. Step 3: Cross multiply
    210,721,128,260.50x = 316,143,783,595.22 × 84,886,972,328.98
  4. Step 4: Simplify right side
    210,721,128,260.50x = 26,836,488,610,026,478,370,816
  5. Step 5: Solve for x
    x = 26,836,488,610,026,478,370,816/210,721,128,260.50
  6. Step 6: Final answer
    x = 127,355,471,335.80

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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.