Home / 1,218,266,103.16-1,681,227,667.56-661,349,150.02

Finding the Fourth Proportional to 1,218,266,103.16, 1,681,227,667.56 and 661,349,150.02

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Solution

The fourth proportional to 1,218,266,103.16, 1,681,227,667.56 and 661,349,150.02 is: 912,672,925.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,266,103.16 : 1,681,227,667.56 = 661,349,150.02 : x
  2. Step 2: Convert to fraction form
    1,218,266,103.16/1,681,227,667.56 = 661,349,150.02/x
  3. Step 3: Cross multiply
    1,218,266,103.16x = 1,681,227,667.56 × 661,349,150.02
  4. Step 4: Simplify right side
    1,218,266,103.16x = 1,111,878,488,930,913,024
  5. Step 5: Solve for x
    x = 1,111,878,488,930,913,024/1,218,266,103.16
  6. Step 6: Final answer
    x = 912,672,925.93

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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.