Home / 1,343,139,130.12-1,853,513,158.48-748,448,679.52

Finding the Fourth Proportional to 1,343,139,130.12, 1,853,513,158.48 and 748,448,679.52

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Solution

The fourth proportional to 1,343,139,130.12, 1,853,513,158.48 and 748,448,679.52 is: 1,032,848,678.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,343,139,130.12 : 1,853,513,158.48 = 748,448,679.52 : x
  2. Step 2: Convert to fraction form
    1,343,139,130.12/1,853,513,158.48 = 748,448,679.52/x
  3. Step 3: Cross multiply
    1,343,139,130.12x = 1,853,513,158.48 × 748,448,679.52
  4. Step 4: Simplify right side
    1,343,139,130.12x = 1,387,259,475,937,300,480
  5. Step 5: Solve for x
    x = 1,387,259,475,937,300,480/1,343,139,130.12
  6. Step 6: Final answer
    x = 1,032,848,678.76

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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.