Home / 163,688,020,012.80-245,532,030,019.20-79,895,504,966.40

Finding the Fourth Proportional to 163,688,020,012.80, 245,532,030,019.20 and 79,895,504,966.40

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Solution

The fourth proportional to 163,688,020,012.80, 245,532,030,019.20 and 79,895,504,966.40 is: 119,843,257,449.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,688,020,012.80 : 245,532,030,019.20 = 79,895,504,966.40 : x
  2. Step 2: Convert to fraction form
    163,688,020,012.80/245,532,030,019.20 = 79,895,504,966.40/x
  3. Step 3: Cross multiply
    163,688,020,012.80x = 245,532,030,019.20 × 79,895,504,966.40
  4. Step 4: Simplify right side
    163,688,020,012.80x = 19,616,905,523,809,266,696,192
  5. Step 5: Solve for x
    x = 19,616,905,523,809,266,696,192/163,688,020,012.80
  6. Step 6: Final answer
    x = 119,843,257,449.60

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Similar ratio
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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.