Finding the Fourth Proportional to 938,582,931.01, 1,294,655,285.00 and 556,834,694.53
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Solution
The fourth proportional to 938,582,931.01, 1,294,655,285.00 and 556,834,694.53 is: 768,082,346.61
Step by Step Solution
- Step 1: Write the proportion equation
938,582,931.01 : 1,294,655,285.00 = 556,834,694.53 : x - Step 2: Convert to fraction form
938,582,931.01/1,294,655,285.00 = 556,834,694.53/x - Step 3: Cross multiply
938,582,931.01x = 1,294,655,285.00 × 556,834,694.53 - Step 4: Simplify right side
938,582,931.01x = 720,908,980,143,360,512 - Step 5: Solve for x
x = 720,908,980,143,360,512/938,582,931.01 - Step 6: Final answer
x = 768,082,346.61
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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.