Home / 660,301,911.60-990,547,345.80-200,276,084.40

Finding the Fourth Proportional to 660,301,911.60, 990,547,345.80 and 200,276,084.40

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Solution

The fourth proportional to 660,301,911.60, 990,547,345.80 and 200,276,084.40 is: 300,442,782.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,301,911.60 : 990,547,345.80 = 200,276,084.40 : x
  2. Step 2: Convert to fraction form
    660,301,911.60/990,547,345.80 = 200,276,084.40/x
  3. Step 3: Cross multiply
    660,301,911.60x = 990,547,345.80 × 200,276,084.40
  4. Step 4: Simplify right side
    660,301,911.60x = 198,382,943,829,636,768
  5. Step 5: Solve for x
    x = 198,382,943,829,636,768/660,301,911.60
  6. Step 6: Final answer
    x = 300,442,782.83

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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.