Home / 830,147,312.90-1,145,610,914.51-472,909,795.08

Finding the Fourth Proportional to 830,147,312.90, 1,145,610,914.51 and 472,909,795.08

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Solution

The fourth proportional to 830,147,312.90, 1,145,610,914.51 and 472,909,795.08 is: 652,619,859.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,147,312.90 : 1,145,610,914.51 = 472,909,795.08 : x
  2. Step 2: Convert to fraction form
    830,147,312.90/1,145,610,914.51 = 472,909,795.08/x
  3. Step 3: Cross multiply
    830,147,312.90x = 1,145,610,914.51 × 472,909,795.08
  4. Step 4: Simplify right side
    830,147,312.90x = 541,770,622,822,335,488
  5. Step 5: Solve for x
    x = 541,770,622,822,335,488/830,147,312.90
  6. Step 6: Final answer
    x = 652,619,859.64

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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.