Home / 12,597,209,220.80-18,886,743,904.80-7,078,159,006.40

Finding the Fourth Proportional to 12,597,209,220.80, 18,886,743,904.80 and 7,078,159,006.40

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Solution

The fourth proportional to 12,597,209,220.80, 18,886,743,904.80 and 7,078,159,006.40 is: 10,612,142,271.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,597,209,220.80 : 18,886,743,904.80 = 7,078,159,006.40 : x
  2. Step 2: Convert to fraction form
    12,597,209,220.80/18,886,743,904.80 = 7,078,159,006.40/x
  3. Step 3: Cross multiply
    12,597,209,220.80x = 18,886,743,904.80 × 7,078,159,006.40
  4. Step 4: Simplify right side
    12,597,209,220.80x = 133,683,376,471,330,406,400
  5. Step 5: Solve for x
    x = 133,683,376,471,330,406,400/12,597,209,220.80
  6. Step 6: Final answer
    x = 10,612,142,271.21

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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.