Home / 931,176,126.30-1,285,054,076.15-507,812,886.89

Finding the Fourth Proportional to 931,176,126.30, 1,285,054,076.15 and 507,812,886.89

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Solution

The fourth proportional to 931,176,126.30, 1,285,054,076.15 and 507,812,886.89 is: 700,798,701.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,176,126.30 : 1,285,054,076.15 = 507,812,886.89 : x
  2. Step 2: Convert to fraction form
    931,176,126.30/1,285,054,076.15 = 507,812,886.89/x
  3. Step 3: Cross multiply
    931,176,126.30x = 1,285,054,076.15 × 507,812,886.89
  4. Step 4: Simplify right side
    931,176,126.30x = 652,567,020,210,529,024
  5. Step 5: Solve for x
    x = 652,567,020,210,529,024/931,176,126.30
  6. Step 6: Final answer
    x = 700,798,701.53

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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.