Home / 765,391,090,051.32-1,056,240,128,051.90-413,424,020,315.64

Finding the Fourth Proportional to 765,391,090,051.32, 1,056,240,128,051.90 and 413,424,020,315.64

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Solution

The fourth proportional to 765,391,090,051.32, 1,056,240,128,051.90 and 413,424,020,315.64 is: 570,525,376,939.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,391,090,051.32 : 1,056,240,128,051.90 = 413,424,020,315.64 : x
  2. Step 2: Convert to fraction form
    765,391,090,051.32/1,056,240,128,051.90 = 413,424,020,315.64/x
  3. Step 3: Cross multiply
    765,391,090,051.32x = 1,056,240,128,051.90 × 413,424,020,315.64
  4. Step 4: Simplify right side
    765,391,090,051.32x = 436,675,040,157,922,924,429,312
  5. Step 5: Solve for x
    x = 436,675,040,157,922,924,429,312/765,391,090,051.32
  6. Step 6: Final answer
    x = 570,525,376,939.84

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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.