Home / 1,420,161,774.40-2,130,242,661.60-655,749,870.40

Finding the Fourth Proportional to 1,420,161,774.40, 2,130,242,661.60 and 655,749,870.40

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Solution

The fourth proportional to 1,420,161,774.40, 2,130,242,661.60 and 655,749,870.40 is: 983,624,805.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,161,774.40 : 2,130,242,661.60 = 655,749,870.40 : x
  2. Step 2: Convert to fraction form
    1,420,161,774.40/2,130,242,661.60 = 655,749,870.40/x
  3. Step 3: Cross multiply
    1,420,161,774.40x = 2,130,242,661.60 × 655,749,870.40
  4. Step 4: Simplify right side
    1,420,161,774.40x = 1,396,906,349,264,750,848
  5. Step 5: Solve for x
    x = 1,396,906,349,264,750,848/1,420,161,774.40
  6. Step 6: Final answer
    x = 983,624,805.60

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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.