Home / 809,095,875.40-1,211,590,949.10-445,179,075.40

Finding the Fourth Proportional to 809,095,875.40, 1,211,590,949.10 and 445,179,075.40

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Solution

The fourth proportional to 809,095,875.40, 1,211,590,949.10 and 445,179,075.40 is: 666,639,090.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,095,875.40 : 1,211,590,949.10 = 445,179,075.40 : x
  2. Step 2: Convert to fraction form
    809,095,875.40/1,211,590,949.10 = 445,179,075.40/x
  3. Step 3: Cross multiply
    809,095,875.40x = 1,211,590,949.10 × 445,179,075.40
  4. Step 4: Simplify right side
    809,095,875.40x = 539,374,938,483,346,368
  5. Step 5: Solve for x
    x = 539,374,938,483,346,368/809,095,875.40
  6. Step 6: Final answer
    x = 666,639,090.47

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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.