Home / 1,409,664,159.60-2,114,496,239.40-858,666,130.80

Finding the Fourth Proportional to 1,409,664,159.60, 2,114,496,239.40 and 858,666,130.80

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Solution

The fourth proportional to 1,409,664,159.60, 2,114,496,239.40 and 858,666,130.80 is: 1,287,999,196.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,664,159.60 : 2,114,496,239.40 = 858,666,130.80 : x
  2. Step 2: Convert to fraction form
    1,409,664,159.60/2,114,496,239.40 = 858,666,130.80/x
  3. Step 3: Cross multiply
    1,409,664,159.60x = 2,114,496,239.40 × 858,666,130.80
  4. Step 4: Simplify right side
    1,409,664,159.60x = 1,815,646,304,476,748,544
  5. Step 5: Solve for x
    x = 1,815,646,304,476,748,544/1,409,664,159.60
  6. Step 6: Final answer
    x = 1,287,999,196.20

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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.