Home / 20,963,881,051.92-31,461,439,307.76-15,382,241,488.80

Finding the Fourth Proportional to 20,963,881,051.92, 31,461,439,307.76 and 15,382,241,488.80

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Solution

The fourth proportional to 20,963,881,051.92, 31,461,439,307.76 and 15,382,241,488.80 is: 23,084,821,737.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,963,881,051.92 : 31,461,439,307.76 = 15,382,241,488.80 : x
  2. Step 2: Convert to fraction form
    20,963,881,051.92/31,461,439,307.76 = 15,382,241,488.80/x
  3. Step 3: Cross multiply
    20,963,881,051.92x = 31,461,439,307.76 × 15,382,241,488.80
  4. Step 4: Simplify right side
    20,963,881,051.92x = 483,947,457,017,188,974,592
  5. Step 5: Solve for x
    x = 483,947,457,017,188,974,592/20,963,881,051.92
  6. Step 6: Final answer
    x = 23,084,821,737.86

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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.