Home / 13,126,398,482.12-18,114,430,790.75-7,185,950,984.12

Finding the Fourth Proportional to 13,126,398,482.12, 18,114,430,790.75 and 7,185,950,984.12

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Solution

The fourth proportional to 13,126,398,482.12, 18,114,430,790.75 and 7,185,950,984.12 is: 9,916,612,842.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,126,398,482.12 : 18,114,430,790.75 = 7,185,950,984.12 : x
  2. Step 2: Convert to fraction form
    13,126,398,482.12/18,114,430,790.75 = 7,185,950,984.12/x
  3. Step 3: Cross multiply
    13,126,398,482.12x = 18,114,430,790.75 × 7,185,950,984.12
  4. Step 4: Simplify right side
    13,126,398,482.12x = 130,169,411,767,538,515,968
  5. Step 5: Solve for x
    x = 130,169,411,767,538,515,968/13,126,398,482.12
  6. Step 6: Final answer
    x = 9,916,612,842.80

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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.