Home / 708,800,027.56-978,144,075.30-391,260,357.16

Finding the Fourth Proportional to 708,800,027.56, 978,144,075.30 and 391,260,357.16

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Solution

The fourth proportional to 708,800,027.56, 978,144,075.30 and 391,260,357.16 is: 539,939,313.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,800,027.56 : 978,144,075.30 = 391,260,357.16 : x
  2. Step 2: Convert to fraction form
    708,800,027.56/978,144,075.30 = 391,260,357.16/x
  3. Step 3: Cross multiply
    708,800,027.56x = 978,144,075.30 × 391,260,357.16
  4. Step 4: Simplify right side
    708,800,027.56x = 382,709,000,255,815,936
  5. Step 5: Solve for x
    x = 382,709,000,255,815,936/708,800,027.56
  6. Step 6: Final answer
    x = 539,939,313.45

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1.5x scale

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.