Home / 430,012,897,551.73-645,104,317,307.64-157,739,674,316.01

Finding the Fourth Proportional to 430,012,897,551.73, 645,104,317,307.64 and 157,739,674,316.01

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Solution

The fourth proportional to 430,012,897,551.73, 645,104,317,307.64 and 157,739,674,316.01 is: 236,640,680,991.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,012,897,551.73 : 645,104,317,307.64 = 157,739,674,316.01 : x
  2. Step 2: Convert to fraction form
    430,012,897,551.73/645,104,317,307.64 = 157,739,674,316.01/x
  3. Step 3: Cross multiply
    430,012,897,551.73x = 645,104,317,307.64 × 157,739,674,316.01
  4. Step 4: Simplify right side
    430,012,897,551.73x = 101,758,544,911,959,112,810,496
  5. Step 5: Solve for x
    x = 101,758,544,911,959,112,810,496/430,012,897,551.73
  6. Step 6: Final answer
    x = 236,640,680,991.94

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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.