Home / 12,838,128,602.90-19,257,192,904.35-7,328,148,314.90

Finding the Fourth Proportional to 12,838,128,602.90, 19,257,192,904.35 and 7,328,148,314.90

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Solution

The fourth proportional to 12,838,128,602.90, 19,257,192,904.35 and 7,328,148,314.90 is: 10,992,222,472.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,838,128,602.90 : 19,257,192,904.35 = 7,328,148,314.90 : x
  2. Step 2: Convert to fraction form
    12,838,128,602.90/19,257,192,904.35 = 7,328,148,314.90/x
  3. Step 3: Cross multiply
    12,838,128,602.90x = 19,257,192,904.35 × 7,328,148,314.90
  4. Step 4: Simplify right side
    12,838,128,602.90x = 141,119,565,731,716,677,632
  5. Step 5: Solve for x
    x = 141,119,565,731,716,677,632/12,838,128,602.90
  6. Step 6: Final answer
    x = 10,992,222,472.35

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Double scale
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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.