Home / 859,815,909.51-1,287,833,409.32-710,572,055.19

Finding the Fourth Proportional to 859,815,909.51, 1,287,833,409.32 and 710,572,055.19

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Solution

The fourth proportional to 859,815,909.51, 1,287,833,409.32 and 710,572,055.19 is: 1,064,295,766.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,815,909.51 : 1,287,833,409.32 = 710,572,055.19 : x
  2. Step 2: Convert to fraction form
    859,815,909.51/1,287,833,409.32 = 710,572,055.19/x
  3. Step 3: Cross multiply
    859,815,909.51x = 1,287,833,409.32 × 710,572,055.19
  4. Step 4: Simplify right side
    859,815,909.51x = 915,098,432,399,304,192
  5. Step 5: Solve for x
    x = 915,098,432,399,304,192/859,815,909.51
  6. Step 6: Final answer
    x = 1,064,295,766.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.