Home / 1,409,715,994.99-1,945,294,185.02-815,038,802.63

Finding the Fourth Proportional to 1,409,715,994.99, 1,945,294,185.02 and 815,038,802.63

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Solution

The fourth proportional to 1,409,715,994.99, 1,945,294,185.02 and 815,038,802.63 is: 1,124,687,702.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,715,994.99 : 1,945,294,185.02 = 815,038,802.63 : x
  2. Step 2: Convert to fraction form
    1,409,715,994.99/1,945,294,185.02 = 815,038,802.63/x
  3. Step 3: Cross multiply
    1,409,715,994.99x = 1,945,294,185.02 × 815,038,802.63
  4. Step 4: Simplify right side
    1,409,715,994.99x = 1,585,490,243,321,802,496
  5. Step 5: Solve for x
    x = 1,585,490,243,321,802,496/1,409,715,994.99
  6. Step 6: Final answer
    x = 1,124,687,702.31

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Double scale
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1.5x scale

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.