Home / 1,186,209,763.32-1,636,969,447.37-657,572,409.84

Finding the Fourth Proportional to 1,186,209,763.32, 1,636,969,447.37 and 657,572,409.84

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Solution

The fourth proportional to 1,186,209,763.32, 1,636,969,447.37 and 657,572,409.84 is: 907,449,911.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,209,763.32 : 1,636,969,447.37 = 657,572,409.84 : x
  2. Step 2: Convert to fraction form
    1,186,209,763.32/1,636,969,447.37 = 657,572,409.84/x
  3. Step 3: Cross multiply
    1,186,209,763.32x = 1,636,969,447.37 × 657,572,409.84
  4. Step 4: Simplify right side
    1,186,209,763.32x = 1,076,425,944,341,543,936
  5. Step 5: Solve for x
    x = 1,076,425,944,341,543,936/1,186,209,763.32
  6. Step 6: Final answer
    x = 907,449,911.16

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Double scale
Find fourth proportional to 1,186,209,764.32, 1,636,969,448.75 and 657,572,410.84
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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.