Home / 72,085,137,345.07-108,117,180,798.63-21,019,711,834.29

Finding the Fourth Proportional to 72,085,137,345.07, 108,117,180,798.63 and 21,019,711,834.29

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Solution

The fourth proportional to 72,085,137,345.07, 108,117,180,798.63 and 21,019,711,834.29 is: 31,526,498,643.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,085,137,345.07 : 108,117,180,798.63 = 21,019,711,834.29 : x
  2. Step 2: Convert to fraction form
    72,085,137,345.07/108,117,180,798.63 = 21,019,711,834.29/x
  3. Step 3: Cross multiply
    72,085,137,345.07x = 108,117,180,798.63 × 21,019,711,834.29
  4. Step 4: Simplify right side
    72,085,137,345.07x = 2,272,591,984,722,602,098,688
  5. Step 5: Solve for x
    x = 2,272,591,984,722,602,098,688/72,085,137,345.07
  6. Step 6: Final answer
    x = 31,526,498,643.45

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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.