Home / 12,886,814,780.07-17,785,352,564.69-7,806,029,637.47

Finding the Fourth Proportional to 12,886,814,780.07, 17,785,352,564.69 and 7,806,029,637.47

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Solution

The fourth proportional to 12,886,814,780.07, 17,785,352,564.69 and 7,806,029,637.47 is: 10,773,258,683.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,886,814,780.07 : 17,785,352,564.69 = 7,806,029,637.47 : x
  2. Step 2: Convert to fraction form
    12,886,814,780.07/17,785,352,564.69 = 7,806,029,637.47/x
  3. Step 3: Cross multiply
    12,886,814,780.07x = 17,785,352,564.69 × 7,806,029,637.47
  4. Step 4: Simplify right side
    12,886,814,780.07x = 138,832,989,232,695,279,616
  5. Step 5: Solve for x
    x = 138,832,989,232,695,279,616/12,886,814,780.07
  6. Step 6: Final answer
    x = 10,773,258,683.55

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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.