Home / 1,178,759,427.60-1,768,139,141.40-402,146,979.60

Finding the Fourth Proportional to 1,178,759,427.60, 1,768,139,141.40 and 402,146,979.60

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Solution

The fourth proportional to 1,178,759,427.60, 1,768,139,141.40 and 402,146,979.60 is: 603,220,469.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,759,427.60 : 1,768,139,141.40 = 402,146,979.60 : x
  2. Step 2: Convert to fraction form
    1,178,759,427.60/1,768,139,141.40 = 402,146,979.60/x
  3. Step 3: Cross multiply
    1,178,759,427.60x = 1,768,139,141.40 × 402,146,979.60
  4. Step 4: Simplify right side
    1,178,759,427.60x = 711,051,815,226,547,456
  5. Step 5: Solve for x
    x = 711,051,815,226,547,456/1,178,759,427.60
  6. Step 6: Final answer
    x = 603,220,469.40

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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.