Home / 861,390,466.56-1,188,712,796.76-470,249,890.56

Finding the Fourth Proportional to 861,390,466.56, 1,188,712,796.76 and 470,249,890.56

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Solution

The fourth proportional to 861,390,466.56, 1,188,712,796.76 and 470,249,890.56 is: 648,941,547.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,390,466.56 : 1,188,712,796.76 = 470,249,890.56 : x
  2. Step 2: Convert to fraction form
    861,390,466.56/1,188,712,796.76 = 470,249,890.56/x
  3. Step 3: Cross multiply
    861,390,466.56x = 1,188,712,796.76 × 470,249,890.56
  4. Step 4: Simplify right side
    861,390,466.56x = 558,992,062,583,661,504
  5. Step 5: Solve for x
    x = 558,992,062,583,661,504/861,390,466.56
  6. Step 6: Final answer
    x = 648,941,547.75

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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.