Home / 919,176,800.40-1,268,462,257.20-501,489,368.64

Finding the Fourth Proportional to 919,176,800.40, 1,268,462,257.20 and 501,489,368.64

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Solution

The fourth proportional to 919,176,800.40, 1,268,462,257.20 and 501,489,368.64 is: 692,054,386.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,176,800.40 : 1,268,462,257.20 = 501,489,368.64 : x
  2. Step 2: Convert to fraction form
    919,176,800.40/1,268,462,257.20 = 501,489,368.64/x
  3. Step 3: Cross multiply
    919,176,800.40x = 1,268,462,257.20 × 501,489,368.64
  4. Step 4: Simplify right side
    919,176,800.40x = 636,120,336,506,897,280
  5. Step 5: Solve for x
    x = 636,120,336,506,897,280/919,176,800.40
  6. Step 6: Final answer
    x = 692,054,386.31

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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.