Home / 620,548,900.56-856,360,075.68-342,084,314.16

Finding the Fourth Proportional to 620,548,900.56, 856,360,075.68 and 342,084,314.16

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Solution

The fourth proportional to 620,548,900.56, 856,360,075.68 and 342,084,314.16 is: 472,077,782.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,548,900.56 : 856,360,075.68 = 342,084,314.16 : x
  2. Step 2: Convert to fraction form
    620,548,900.56/856,360,075.68 = 342,084,314.16/x
  3. Step 3: Cross multiply
    620,548,900.56x = 856,360,075.68 × 342,084,314.16
  4. Step 4: Simplify right side
    620,548,900.56x = 292,947,349,162,998,528
  5. Step 5: Solve for x
    x = 292,947,349,162,998,528/620,548,900.56
  6. Step 6: Final answer
    x = 472,077,782.91

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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.