Home / 142,600,826,188.06-196,793,859,554.80-78,373,827,054.42

Finding the Fourth Proportional to 142,600,826,188.06, 196,793,859,554.80 and 78,373,827,054.42

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Solution

The fourth proportional to 142,600,826,188.06, 196,793,859,554.80 and 78,373,827,054.42 is: 108,158,475,139.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,600,826,188.06 : 196,793,859,554.80 = 78,373,827,054.42 : x
  2. Step 2: Convert to fraction form
    142,600,826,188.06/196,793,859,554.80 = 78,373,827,054.42/x
  3. Step 3: Cross multiply
    142,600,826,188.06x = 196,793,859,554.80 × 78,373,827,054.42
  4. Step 4: Simplify right side
    142,600,826,188.06x = 15,423,487,914,119,712,997,376
  5. Step 5: Solve for x
    x = 15,423,487,914,119,712,997,376/142,600,826,188.06
  6. Step 6: Final answer
    x = 108,158,475,139.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.