Home / 1,139,784,619.74-1,572,918,838.93-656,709,588.76

Finding the Fourth Proportional to 1,139,784,619.74, 1,572,918,838.93 and 656,709,588.76

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Solution

The fourth proportional to 1,139,784,619.74, 1,572,918,838.93 and 656,709,588.76 is: 906,268,487.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,784,619.74 : 1,572,918,838.93 = 656,709,588.76 : x
  2. Step 2: Convert to fraction form
    1,139,784,619.74/1,572,918,838.93 = 656,709,588.76/x
  3. Step 3: Cross multiply
    1,139,784,619.74x = 1,572,918,838.93 × 656,709,588.76
  4. Step 4: Simplify right side
    1,139,784,619.74x = 1,032,950,883,866,577,024
  5. Step 5: Solve for x
    x = 1,032,950,883,866,577,024/1,139,784,619.74
  6. Step 6: Final answer
    x = 906,268,487.90

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Double scale
Find fourth proportional to 1,139,784,620.74, 1,572,918,840.31 and 656,709,589.76
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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.