Finding the Fourth Proportional to 100,971,295.46, 139,316,655.58 and 61,277,946.42
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Solution
The fourth proportional to 100,971,295.46, 139,316,655.58 and 61,277,946.42 is: 84,549,163.38
Step by Step Solution
- Step 1: Write the proportion equation
100,971,295.46 : 139,316,655.58 = 61,277,946.42 : x - Step 2: Convert to fraction form
100,971,295.46/139,316,655.58 = 61,277,946.42/x - Step 3: Cross multiply
100,971,295.46x = 139,316,655.58 × 61,277,946.42 - Step 4: Simplify right side
100,971,295.46x = 8,537,038,556,044,835 - Step 5: Solve for x
x = 8,537,038,556,044,835/100,971,295.46 - Step 6: Final answer
x = 84,549,163.38
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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.