Home / 791,155,164.40-1,091,773,443.36-438,730,262.08

Finding the Fourth Proportional to 791,155,164.40, 1,091,773,443.36 and 438,730,262.08

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Solution

The fourth proportional to 791,155,164.40, 1,091,773,443.36 and 438,730,262.08 is: 605,436,291.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,155,164.40 : 1,091,773,443.36 = 438,730,262.08 : x
  2. Step 2: Convert to fraction form
    791,155,164.40/1,091,773,443.36 = 438,730,262.08/x
  3. Step 3: Cross multiply
    791,155,164.40x = 1,091,773,443.36 × 438,730,262.08
  4. Step 4: Simplify right side
    791,155,164.40x = 478,994,048,937,316,800
  5. Step 5: Solve for x
    x = 478,994,048,937,316,800/791,155,164.40
  6. Step 6: Final answer
    x = 605,436,291.76

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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.