Home / 656,123,160,206.45-989,102,518,069.95-612,385,808,376.45

Finding the Fourth Proportional to 656,123,160,206.45, 989,102,518,069.95 and 612,385,808,376.45

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Solution

The fourth proportional to 656,123,160,206.45, 989,102,518,069.95 and 612,385,808,376.45 is: 923,168,669,895.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,123,160,206.45 : 989,102,518,069.95 = 612,385,808,376.45 : x
  2. Step 2: Convert to fraction form
    656,123,160,206.45/989,102,518,069.95 = 612,385,808,376.45/x
  3. Step 3: Cross multiply
    656,123,160,206.45x = 989,102,518,069.95 × 612,385,808,376.45
  4. Step 4: Simplify right side
    656,123,160,206.45x = 605,712,345,095,448,437,981,184
  5. Step 5: Solve for x
    x = 605,712,345,095,448,437,981,184/656,123,160,206.45
  6. Step 6: Final answer
    x = 923,168,669,895.54

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.