Home / 20,710,881,567.02-31,062,921,128.12-8,916,824,817.74

Finding the Fourth Proportional to 20,710,881,567.02, 31,062,921,128.12 and 8,916,824,817.74

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Solution

The fourth proportional to 20,710,881,567.02, 31,062,921,128.12 and 8,916,824,817.74 is: 13,373,772,870.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,710,881,567.02 : 31,062,921,128.12 = 8,916,824,817.74 : x
  2. Step 2: Convert to fraction form
    20,710,881,567.02/31,062,921,128.12 = 8,916,824,817.74/x
  3. Step 3: Cross multiply
    20,710,881,567.02x = 31,062,921,128.12 × 8,916,824,817.74
  4. Step 4: Simplify right side
    20,710,881,567.02x = 276,982,626,026,720,591,872
  5. Step 5: Solve for x
    x = 276,982,626,026,720,591,872/20,710,881,567.02
  6. Step 6: Final answer
    x = 13,373,772,870.58

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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.