Home / 257,282,815,182.68-355,559,704,355.40-210,860,021,796.35

Finding the Fourth Proportional to 257,282,815,182.68, 355,559,704,355.40 and 210,860,021,796.35

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Solution

The fourth proportional to 257,282,815,182.68, 355,559,704,355.40 and 210,860,021,796.35 is: 291,404,332,454.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,282,815,182.68 : 355,559,704,355.40 = 210,860,021,796.35 : x
  2. Step 2: Convert to fraction form
    257,282,815,182.68/355,559,704,355.40 = 210,860,021,796.35/x
  3. Step 3: Cross multiply
    257,282,815,182.68x = 355,559,704,355.40 × 210,860,021,796.35
  4. Step 4: Simplify right side
    257,282,815,182.68x = 74,973,327,010,283,411,996,672
  5. Step 5: Solve for x
    x = 74,973,327,010,283,411,996,672/257,282,815,182.68
  6. Step 6: Final answer
    x = 291,404,332,454.35

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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.