Home / 612,112,686,394.32-845,021,326,419.68-380,700,796,221

Finding the Fourth Proportional to 612,112,686,394.32, 845,021,326,419.68 and 380,700,796,221

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Solution

The fourth proportional to 612,112,686,394.32, 845,021,326,419.68 and 380,700,796,221 is: 525,557,301,690.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,112,686,394.32 : 845,021,326,419.68 = 380,700,796,221 : x
  2. Step 2: Convert to fraction form
    612,112,686,394.32/845,021,326,419.68 = 380,700,796,221/x
  3. Step 3: Cross multiply
    612,112,686,394.32x = 845,021,326,419.68 × 380,700,796,221
  4. Step 4: Simplify right side
    612,112,686,394.32x = 321,700,291,791,697,735,581,696
  5. Step 5: Solve for x
    x = 321,700,291,791,697,735,581,696/612,112,686,394.32
  6. Step 6: Final answer
    x = 525,557,301,690.13

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Double scale
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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.