Home / 915,168,438,235.52-1,262,932,650,910.80-503,636,916,935.32

Finding the Fourth Proportional to 915,168,438,235.52, 1,262,932,650,910.80 and 503,636,916,935.32

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Solution

The fourth proportional to 915,168,438,235.52, 1,262,932,650,910.80 and 503,636,916,935.32 is: 695,019,058,817.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,168,438,235.52 : 1,262,932,650,910.80 = 503,636,916,935.32 : x
  2. Step 2: Convert to fraction form
    915,168,438,235.52/1,262,932,650,910.80 = 503,636,916,935.32/x
  3. Step 3: Cross multiply
    915,168,438,235.52x = 1,262,932,650,910.80 × 503,636,916,935.32
  4. Step 4: Simplify right side
    915,168,438,235.52x = 636,059,506,601,666,099,019,776
  5. Step 5: Solve for x
    x = 636,059,506,601,666,099,019,776/915,168,438,235.52
  6. Step 6: Final answer
    x = 695,019,058,817.21

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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.