Home / 86,222,663,999.80-129,333,995,999.70-42,085,042,905.40

Finding the Fourth Proportional to 86,222,663,999.80, 129,333,995,999.70 and 42,085,042,905.40

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Solution

The fourth proportional to 86,222,663,999.80, 129,333,995,999.70 and 42,085,042,905.40 is: 63,127,564,358.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,222,663,999.80 : 129,333,995,999.70 = 42,085,042,905.40 : x
  2. Step 2: Convert to fraction form
    86,222,663,999.80/129,333,995,999.70 = 42,085,042,905.40/x
  3. Step 3: Cross multiply
    86,222,663,999.80x = 129,333,995,999.70 × 42,085,042,905.40
  4. Step 4: Simplify right side
    86,222,663,999.80x = 5,443,026,770,774,206,709,760
  5. Step 5: Solve for x
    x = 5,443,026,770,774,206,709,760/86,222,663,999.80
  6. Step 6: Final answer
    x = 63,127,564,358.10

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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.