Home / 7,180,928,349,698-9,909,690,679,011.90-3,888,681,857,105.20

Finding the Fourth Proportional to 7,180,928,349,698, 9,909,690,679,011.90 and 3,888,681,857,105.20

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Solution

The fourth proportional to 7,180,928,349,698, 9,909,690,679,011.90 and 3,888,681,857,105.20 is: 5,366,386,137,889.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,180,928,349,698 : 9,909,690,679,011.90 = 3,888,681,857,105.20 : x
  2. Step 2: Convert to fraction form
    7,180,928,349,698/9,909,690,679,011.90 = 3,888,681,857,105.20/x
  3. Step 3: Cross multiply
    7,180,928,349,698x = 9,909,690,679,011.90 × 3,888,681,857,105.20
  4. Step 4: Simplify right side
    7,180,928,349,698x = 38,535,634,352,998,089,112,944,640
  5. Step 5: Solve for x
    x = 38,535,634,352,998,089,112,944,640/7,180,928,349,698
  6. Step 6: Final answer
    x = 5,366,386,137,889.64

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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.