Finding the Fourth Proportional to 472,495,331.70, 708,742,997.55 and 472,495,331.70
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Solution
The fourth proportional to 472,495,331.70, 708,742,997.55 and 472,495,331.70 is: 708,742,997.55
Step by Step Solution
- Step 1: Write the proportion equation
472,495,331.70 : 708,742,997.55 = 472,495,331.70 : x - Step 2: Convert to fraction form
472,495,331.70/708,742,997.55 = 472,495,331.70/x - Step 3: Cross multiply
472,495,331.70x = 708,742,997.55 × 472,495,331.70 - Step 4: Simplify right side
472,495,331.70x = 334,877,757,717,439,488 - Step 5: Solve for x
x = 334,877,757,717,439,488/472,495,331.70 - Step 6: Final answer
x = 708,742,997.55
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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.