Home / 81,262,602,004.20-121,893,903,006.30-53,019,648,356.10

Finding the Fourth Proportional to 81,262,602,004.20, 121,893,903,006.30 and 53,019,648,356.10

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Solution

The fourth proportional to 81,262,602,004.20, 121,893,903,006.30 and 53,019,648,356.10 is: 79,529,472,534.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,262,602,004.20 : 121,893,903,006.30 = 53,019,648,356.10 : x
  2. Step 2: Convert to fraction form
    81,262,602,004.20/121,893,903,006.30 = 53,019,648,356.10/x
  3. Step 3: Cross multiply
    81,262,602,004.20x = 121,893,903,006.30 × 53,019,648,356.10
  4. Step 4: Simplify right side
    81,262,602,004.20x = 6,462,771,874,146,586,460,160
  5. Step 5: Solve for x
    x = 6,462,771,874,146,586,460,160/81,262,602,004.20
  6. Step 6: Final answer
    x = 79,529,472,534.15

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Double scale
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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.