Home / 1,392,001,547.35-1,920,492,030.90-789,107,534.59

Finding the Fourth Proportional to 1,392,001,547.35, 1,920,492,030.90 and 789,107,534.59

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Solution

The fourth proportional to 1,392,001,547.35, 1,920,492,030.90 and 789,107,534.59 is: 1,088,701,901.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,001,547.35 : 1,920,492,030.90 = 789,107,534.59 : x
  2. Step 2: Convert to fraction form
    1,392,001,547.35/1,920,492,030.90 = 789,107,534.59/x
  3. Step 3: Cross multiply
    1,392,001,547.35x = 1,920,492,030.90 × 789,107,534.59
  4. Step 4: Simplify right side
    1,392,001,547.35x = 1,515,474,731,703,241,216
  5. Step 5: Solve for x
    x = 1,515,474,731,703,241,216/1,392,001,547.35
  6. Step 6: Final answer
    x = 1,088,701,901.65

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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.