Home / 513,893,049,751.12-709,191,547,664.52-308,160,784,326.64

Finding the Fourth Proportional to 513,893,049,751.12, 709,191,547,664.52 and 308,160,784,326.64

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Solution

The fourth proportional to 513,893,049,751.12, 709,191,547,664.52 and 308,160,784,326.64 is: 425,273,359,256.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,893,049,751.12 : 709,191,547,664.52 = 308,160,784,326.64 : x
  2. Step 2: Convert to fraction form
    513,893,049,751.12/709,191,547,664.52 = 308,160,784,326.64/x
  3. Step 3: Cross multiply
    513,893,049,751.12x = 709,191,547,664.52 × 308,160,784,326.64
  4. Step 4: Simplify right side
    513,893,049,751.12x = 218,545,023,566,122,189,848,576
  5. Step 5: Solve for x
    x = 218,545,023,566,122,189,848,576/513,893,049,751.12
  6. Step 6: Final answer
    x = 425,273,359,256.30

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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.