Home / 14,785,781,013.59-20,411,413,716.69-9,905,752,360.35

Finding the Fourth Proportional to 14,785,781,013.59, 20,411,413,716.69 and 9,905,752,360.35

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Solution

The fourth proportional to 14,785,781,013.59, 20,411,413,716.69 and 9,905,752,360.35 is: 13,674,651,979.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,785,781,013.59 : 20,411,413,716.69 = 9,905,752,360.35 : x
  2. Step 2: Convert to fraction form
    14,785,781,013.59/20,411,413,716.69 = 9,905,752,360.35/x
  3. Step 3: Cross multiply
    14,785,781,013.59x = 20,411,413,716.69 × 9,905,752,360.35
  4. Step 4: Simplify right side
    14,785,781,013.59x = 202,190,409,602,182,316,032
  5. Step 5: Solve for x
    x = 202,190,409,602,182,316,032/14,785,781,013.59
  6. Step 6: Final answer
    x = 13,674,651,979.25

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Double scale
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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.