Home / 772,547,628.60-1,158,821,442.90-465,681,785.40

Finding the Fourth Proportional to 772,547,628.60, 1,158,821,442.90 and 465,681,785.40

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Solution

The fourth proportional to 772,547,628.60, 1,158,821,442.90 and 465,681,785.40 is: 698,522,678.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,547,628.60 : 1,158,821,442.90 = 465,681,785.40 : x
  2. Step 2: Convert to fraction form
    772,547,628.60/1,158,821,442.90 = 465,681,785.40/x
  3. Step 3: Cross multiply
    772,547,628.60x = 1,158,821,442.90 × 465,681,785.40
  4. Step 4: Simplify right side
    772,547,628.60x = 539,642,038,489,476,160
  5. Step 5: Solve for x
    x = 539,642,038,489,476,160/772,547,628.60
  6. Step 6: Final answer
    x = 698,522,678.10

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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.