Home / 868,994,992.80-1,303,492,489.20-772,249,111.20

Finding the Fourth Proportional to 868,994,992.80, 1,303,492,489.20 and 772,249,111.20

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Solution

The fourth proportional to 868,994,992.80, 1,303,492,489.20 and 772,249,111.20 is: 1,158,373,666.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,994,992.80 : 1,303,492,489.20 = 772,249,111.20 : x
  2. Step 2: Convert to fraction form
    868,994,992.80/1,303,492,489.20 = 772,249,111.20/x
  3. Step 3: Cross multiply
    868,994,992.80x = 1,303,492,489.20 × 772,249,111.20
  4. Step 4: Simplify right side
    868,994,992.80x = 1,006,620,916,240,575,744
  5. Step 5: Solve for x
    x = 1,006,620,916,240,575,744/868,994,992.80
  6. Step 6: Final answer
    x = 1,158,373,666.80

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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.