Home / 787,440,017.48-1,180,886,492.46-438,219,011.84

Finding the Fourth Proportional to 787,440,017.48, 1,180,886,492.46 and 438,219,011.84

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Solution

The fourth proportional to 787,440,017.48, 1,180,886,492.46 and 438,219,011.84 is: 657,176,293.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,440,017.48 : 1,180,886,492.46 = 438,219,011.84 : x
  2. Step 2: Convert to fraction form
    787,440,017.48/1,180,886,492.46 = 438,219,011.84/x
  3. Step 3: Cross multiply
    787,440,017.48x = 1,180,886,492.46 × 438,219,011.84
  4. Step 4: Simplify right side
    787,440,017.48x = 517,486,911,821,024,768
  5. Step 5: Solve for x
    x = 517,486,911,821,024,768/787,440,017.48
  6. Step 6: Final answer
    x = 657,176,293.22

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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.