Home / 1,287,724,888.94-1,777,445,711.21-752,021,057.18

Finding the Fourth Proportional to 1,287,724,888.94, 1,777,445,711.21 and 752,021,057.18

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Solution

The fourth proportional to 1,287,724,888.94, 1,777,445,711.21 and 752,021,057.18 is: 1,038,014,108.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,724,888.94 : 1,777,445,711.21 = 752,021,057.18 : x
  2. Step 2: Convert to fraction form
    1,287,724,888.94/1,777,445,711.21 = 752,021,057.18/x
  3. Step 3: Cross multiply
    1,287,724,888.94x = 1,777,445,711.21 × 752,021,057.18
  4. Step 4: Simplify right side
    1,287,724,888.94x = 1,336,676,602,830,524,928
  5. Step 5: Solve for x
    x = 1,336,676,602,830,524,928/1,287,724,888.94
  6. Step 6: Final answer
    x = 1,038,014,108.69

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Find fourth proportional to 1,287,724,889.94, 1,777,445,712.59 and 752,021,058.18
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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.