Home / 858,185,065.60-1,287,277,598.40-772,188,726.40

Finding the Fourth Proportional to 858,185,065.60, 1,287,277,598.40 and 772,188,726.40

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Solution

The fourth proportional to 858,185,065.60, 1,287,277,598.40 and 772,188,726.40 is: 1,158,283,089.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,185,065.60 : 1,287,277,598.40 = 772,188,726.40 : x
  2. Step 2: Convert to fraction form
    858,185,065.60/1,287,277,598.40 = 772,188,726.40/x
  3. Step 3: Cross multiply
    858,185,065.60x = 1,287,277,598.40 × 772,188,726.40
  4. Step 4: Simplify right side
    858,185,065.60x = 994,021,249,231,746,688
  5. Step 5: Solve for x
    x = 994,021,249,231,746,688/858,185,065.60
  6. Step 6: Final answer
    x = 1,158,283,089.60

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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.