Home / 20,285,437,931.69-30,432,831,572.75-7,020,696,368.73

Finding the Fourth Proportional to 20,285,437,931.69, 30,432,831,572.75 and 7,020,696,368.73

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Solution

The fourth proportional to 20,285,437,931.69, 30,432,831,572.75 and 7,020,696,368.73 is: 10,532,662,436.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,285,437,931.69 : 30,432,831,572.75 = 7,020,696,368.73 : x
  2. Step 2: Convert to fraction form
    20,285,437,931.69/30,432,831,572.75 = 7,020,696,368.73/x
  3. Step 3: Cross multiply
    20,285,437,931.69x = 30,432,831,572.75 × 7,020,696,368.73
  4. Step 4: Simplify right side
    20,285,437,931.69x = 213,659,670,112,839,499,776
  5. Step 5: Solve for x
    x = 213,659,670,112,839,499,776/20,285,437,931.69
  6. Step 6: Final answer
    x = 10,532,662,436.59

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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.