Home / 871,630,030.32-1,307,830,131.72-457,007,722.80

Finding the Fourth Proportional to 871,630,030.32, 1,307,830,131.72 and 457,007,722.80

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Solution

The fourth proportional to 871,630,030.32, 1,307,830,131.72 and 457,007,722.80 is: 685,713,490.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,630,030.32 : 1,307,830,131.72 = 457,007,722.80 : x
  2. Step 2: Convert to fraction form
    871,630,030.32/1,307,830,131.72 = 457,007,722.80/x
  3. Step 3: Cross multiply
    871,630,030.32x = 1,307,830,131.72 × 457,007,722.80
  4. Step 4: Simplify right side
    871,630,030.32x = 597,688,470,306,581,248
  5. Step 5: Solve for x
    x = 597,688,470,306,581,248/871,630,030.32
  6. Step 6: Final answer
    x = 685,713,490.26

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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.