Home / 78,803,054,590.79-108,748,320,206.93-42,674,149,322.28

Finding the Fourth Proportional to 78,803,054,590.79, 108,748,320,206.93 and 42,674,149,322.28

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Solution

The fourth proportional to 78,803,054,590.79, 108,748,320,206.93 and 42,674,149,322.28 is: 58,890,382,855.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,803,054,590.79 : 108,748,320,206.93 = 42,674,149,322.28 : x
  2. Step 2: Convert to fraction form
    78,803,054,590.79/108,748,320,206.93 = 42,674,149,322.28/x
  3. Step 3: Cross multiply
    78,803,054,590.79x = 108,748,320,206.93 × 42,674,149,322.28
  4. Step 4: Simplify right side
    78,803,054,590.79x = 4,640,742,055,057,106,141,184
  5. Step 5: Solve for x
    x = 4,640,742,055,057,106,141,184/78,803,054,590.79
  6. Step 6: Final answer
    x = 58,890,382,855.79

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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.