Home / 630,947,810.40-946,421,715.60-523,452,386.40

Finding the Fourth Proportional to 630,947,810.40, 946,421,715.60 and 523,452,386.40

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Solution

The fourth proportional to 630,947,810.40, 946,421,715.60 and 523,452,386.40 is: 785,178,579.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,947,810.40 : 946,421,715.60 = 523,452,386.40 : x
  2. Step 2: Convert to fraction form
    630,947,810.40/946,421,715.60 = 523,452,386.40/x
  3. Step 3: Cross multiply
    630,947,810.40x = 946,421,715.60 × 523,452,386.40
  4. Step 4: Simplify right side
    630,947,810.40x = 495,406,705,571,602,112
  5. Step 5: Solve for x
    x = 495,406,705,571,602,112/630,947,810.40
  6. Step 6: Final answer
    x = 785,178,579.60

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Double scale
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Similar ratio
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1.5x scale

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.